JP2014066535A - Measurement accuracy-securing confirmation method for radioactivity measurement instrument used when radioactivity of food is measured, and measurement accuracy-securing confirmation device for radioactivity measurement instrument used when radioactivity of food is measured - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly provide information on the capability of measurement of a radiation dose in the state of securing the normal accuracy of the radioactivity measurement device.SOLUTION: When an electronic medium is connected to a radiation measurement instrument and is installed in a PC that allows input of radiation data measured with a radiation measurement instrument, and when confirmation information of measurement accuracy of the radiation measurement instrument confirmed by comparing radiation data to a radiation dose of a food is input to the PC, the information stored in food information, where the radiation data is obtained by measuring when a simulation food radiation source of a form simulating the food is placed on the radiation measurement instrument, a check mark indicating an event of confirming the measurement accuracy of the radiation measurement instrument is added to the radiation data measured with the radiation measurement instrument, and the result is displayed on a screen of PC screen display means.

Description

  The present invention relates to a radioactivity measurement value normal measurement confirmation information providing method, providing apparatus, and providing system.

  Regarding foods produced in certain specified regions and regions, it is required as an administrative request to measure the radiation dose for radioactive substances falling due to the nuclear accident, or to determine the radiation dose, or industry consultation It can be arbitrarily measured as a matter.

  The measurement of radiation dose is, of course, performed by a radioactivity measuring instrument. However, since various radioactivity measuring instruments have different measurement accuracy, a radiation source is used to measure the radiation dose for food. In advance, the radiation dose is measured with the radioactivity measuring device to confirm whether or not the radioactivity measuring device has a certain level of measurement accuracy, and this confirmation is obtained. Radiation dose measurements on foods are made and are publicly accepted values.

  Until now, the accuracy of radioactivity measuring instruments has been checked by a method using a reference radiation source having a constant reference calibrated with a standard radiation source. Conventional radioactivity measuring instruments are often used in fields such as research laboratories and nuclear power plants, and so-called standard radiation sources that are commercially available for calibrating these radioactivity measuring instruments are point source sources. And a centimeter circular source.

  Patent Document 1 describes a method of adjusting a calibration volume radiation source by curing an alumina powder adsorbed with a radioisotope with a resin solution and a curing agent in a plastic container.

  Patent Document 2 discloses a radiation source material characterized by mixing and melting one or more kinds of radioisotopes and other raw materials, and crushing and grinding the composite to obtain powder. A radiation source is described which comprises a material as a base material and is coated in a desired shape.

  Patent Document 3 describes an effective use system of a radiation source.

JP 2003-207598 A JP 11-287899 A JP 2003-6318 A

  The volume radiation source described in Patent Document 1 is a calibration volume radiation source, and is formed using alumina powder adsorbed with a radioisotope.

  The radiation source described in Patent Document 2 is formed by using one or more radioactive isotopes.

  Thus, conventional radiation sources are materials that contain specific radioisotopes and are used for calibration of radioactivity measurement equipment, and other applications are used for nondestructive testing and treatment. In addition, expensive materials are used for the radiation source component.

  The radiation dose is measured on the food by the radioactivity measuring device. When measuring the radiation dose of food with a radioactivity measurement device, it is required to clearly indicate that the radioactivity measurement device is operating normally and the radiation dose has been measured in a state where normal accuracy is ensured. The

  Since the object whose radiation dose is to be measured is food, rapid measurement is required. Food radioactivity measurement devices (including measurement systems) that can measure food continuously and rapidly exist, and are installed in local governments and private companies.

  However, a radiation source for verifying whether or not these food radioactivity measuring devices have been measured for radiation dose in a state where normal accuracy is ensured is commercially available for use in calibrating radioactivity measuring instruments. Since the so-called standard radiation source is a point radiation source and a circular source with a few centimeters, it takes a long time to start these measurements, or the conventional radiation source is complicated with a material containing a specific radioisotope. Therefore, it is not easy to procure a radiation source that is configured by using it, and it takes a long time to measure food radioactivity despite using a high-performance radioactivity measurement device. Is supposed to be required.

  In view of this point, the present invention makes use of the performance of the radioactivity measurement device, and the radioactivity can be quickly verified that the radioactivity measurement device can measure the radioactivity dose while ensuring normal accuracy. The purpose is to establish a measurement accuracy check method for measuring equipment and to provide normal measurement confirmation information for radioactivity measurements.

  In addition, the present invention enables rapid measurement of the radioactive dose as described above, and verification of the measurement of the radioactivity of the food to be measured is performed in a state similar to the shape of the actual food. It is an object of the present invention to provide a radioactivity measurement value normal measurement confirmation information by establishing a radioactivity measurement device measurement accuracy confirmation method so that the purchaser can visually confirm this.

The present invention comprises a built-in component manufactured by mixing an environmental radiation material with an organic material or an inorganic material, or a material formed by mixing a built-in structural material and a curing agent. With the measuring device, the radiation dose measured for the simulated food radiation source in the shape of a container containing a solid or fluid and the ID information of the simulated food radiation source is stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information on the measurement accuracy of the radioactivity measuring instrument is input, a check mark indicating that the radioactivity measurement accuracy has been confirmed is added to the radiation data measured by the radiation measurement instrument and displayed on the computer screen. A radioactivity measurement value normal measurement confirmation information providing method is provided, which is displayed on the screen of the means and output to the output means as normal measurement confirmation information.

Further, the present invention is composed of a built-in component produced by mixing an environmental radiation material with an organic material or an inorganic material, or a material formed by mixing a built-in structural material and a curing agent, The radiation dose measured for the simulated food radiation source in the container-contained shape containing the solid or fluid in the radioactivity measuring instrument and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information of the measurement accuracy of the radioactivity measuring instrument is input, if the radiation dose measured by the radiation measurement instrument is assumed to have no detection value, the radioactivity is displayed in the displayed radiation data that has no detection value. A check mark indicating that the measurement accuracy of the measuring instrument has been confirmed is added and displayed on the screen of the personal computer screen display means, and output to the output means as normal measurement confirmation information. Providing a method for providing normal measurement confirmation information for radioactivity measurements.

Further, the present invention is composed of a built-in component produced by mixing an environmental radiation material with an organic material or an inorganic material, or a material formed by mixing a built-in structural material and a curing agent, The radiation dose measured for the simulated food radiation source in the container-contained shape containing the solid or fluid in the radioactivity measuring instrument and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information on the measurement accuracy of the radioactivity measuring instrument is input, a check mark simulating the food is added to the radiation data measured by the radiometry instrument to indicate that the radioactivity measurement accuracy has been confirmed. The radioactivity measurement normal measurement is characterized in that it is displayed on the screen of the personal computer screen display means, and the personal computer provides the normal measurement confirmation information to the outside through the communication means. Provide a method for providing regular confirmation information.

Further, the present invention is composed of a built-in component produced by mixing an environmental radiation material with an organic material or an inorganic material, or a material formed by mixing a built-in structural material and a curing agent, The radiation dose measured for the simulated food radiation source in the container-contained shape containing the solid or fluid in the radioactivity measuring instrument and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source having a shape simulating the above and the radiation dose stored for the simulated food radiation source based on the ID information are compared, and a predetermined amount is determined from the comparison of both. When the confirmation information of the radioactivity measuring instrument measurement accuracy is generated when the threshold is within the threshold, and the confirmation information is input, the radioactivity measurement accuracy is confirmed in the radiation data measured by the radiation measuring instrument. The radioactivity measurement normal measurement is characterized in that a check mark is added to display on the screen of the personal computer screen display means, and the personal computer provides the normal measurement confirmation information to the outside. Provide a method for providing regular confirmation information.

Further, the present invention is composed of a built-in component produced by mixing an environmental radiation material with an organic material or an inorganic material, or a material formed by mixing a built-in structural material and a curing agent, The radiation dose measured for the simulated food radiation source in the container-contained shape containing the solid or fluid in the radioactivity measuring instrument and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information on the measurement accuracy of the radioactivity measuring instrument is input, a check mark indicating that the radioactivity measurement accuracy has been confirmed is added to the radiation data measured by the radiation measurement instrument and displayed on the computer screen. Provided is a radioactivity measurement normal measurement confirmation information providing apparatus characterized in that it is displayed on a screen of means and output as normal measurement confirmation information.

Further, the present invention is composed of a built-in component produced by mixing an environmental radiation material with an organic material or an inorganic material, or a material formed by mixing a built-in structural material and a curing agent, The radiation dose measured for the simulated food radiation source in the container-contained shape containing the solid or fluid in the radioactivity measuring instrument and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information of the measurement accuracy of the radioactivity measuring instrument is input, if the radiation dose measured by the radiation measurement instrument is assumed to have no detection value, the radioactivity is displayed in the displayed radiation data that has no detection value. Radioactivity measurement value characterized by adding a check mark indicating that the measurement accuracy of the measuring instrument has been confirmed, displaying it on the screen of the PC screen display means, and outputting it as normal measurement confirmation information A normal measurement confirmation information providing device is provided.

Further, the present invention is composed of a built-in component produced by mixing an environmental radiation material with an organic material or an inorganic material, or a material formed by mixing a built-in structural material and a curing agent, The radiation dose measured for the simulated food radiation source in the container-contained shape containing the solid or fluid in the radioactivity measuring instrument and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information on the measurement accuracy of the radioactivity measuring instrument is input, a check mark simulating the food is added to the radiation data measured by the radiometry instrument to indicate that the radioactivity measurement accuracy has been confirmed. To display it on the screen of the PC screen display means,
A radioactivity measurement normal measurement confirmation information providing system is provided in which the personal computer provides the normal measurement confirmation information to the outside through communication means.

Further, the present invention is composed of a built-in component produced by mixing an environmental radiation material with an organic material or an inorganic material, or a material formed by mixing a built-in structural material and a curing agent, The radiation dose measured for the simulated food radiation source in the container-contained shape containing the solid or fluid in the radioactivity measuring instrument and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source having a shape simulating the above and the radiation dose stored for the simulated food radiation source based on the ID information are compared, and a predetermined amount is determined from the comparison of both. When the confirmation information of the radioactivity measuring instrument measurement accuracy is generated when the threshold is within the threshold, and the confirmation information is input, the radioactivity measurement accuracy is confirmed in the radiation data measured by the radiation measuring instrument. Add a check mark to indicate that it is displayed on the screen of the computer screen display means,
Providing a system for providing normal measurement confirmation information for radioactivity measurements, characterized in that the personal computer provides this information to the outside as normal measurement confirmation information.

  The present invention uses a radiation source having an arbitrary radiation dose to make use of the performance of the radioactivity measurement apparatus, and the radioactivity measurement apparatus ensures a normal accuracy below the reference value for the food. For example, even when radiation dose data indicating that no radioactivity has been detected is acquired, it is possible to provide information that is quickly verified that this value is correct.

  In addition, since the present invention uses a radiation source having an arbitrary radiation dose as described above, it is possible to quickly measure the radioactive dose and to verify the measurement of the radioactivity of the food to be measured. Because it is made in a state similar to the shape of food, the measurement of the radioactivity meter is made so precise that the radioactivity meter can be calibrated, and the purchaser can visually measure the radioactivity sufficiently. The confirmation of the accuracy of the instrument can be established, and the radioactivity measurement normal measurement confirmation information can be provided.

The figure which shows the one aspect | mode of the radioactivity measuring apparatus with which the Example of this invention is applied. The figure which shows the radiation source used as the food imitating the real food with respect to the figure of the real food to measure. The figure which shows the production process of the simulated food radiation source. The figure which shows the radioactivity measuring instrument measurement accuracy confirmation method. The block diagram explaining the Example of this invention. The figure which shows the radioactivity measuring method using the conventional standard radiation source. The figure which shows the radioactivity measuring method using a volume radiation source. The figure which shows the radioactivity measuring method using the simulated food radiation source using soil (contaminated soil).

  In the present invention, when measuring the radiation dose of food with a radioactivity meter, the radioactivity is measured by measuring the radiation dose in advance using the radiation source manufactured using the environmental radiation material. By confirming that the measuring instrument has ensured measurement accuracy, the radioactivity measurement value normal measurement confirmation information is provided.

  As one of the environmental radiation materials, a built-in component made by mixing a plant or / and soil containing a radioactive substance due to the fall of the radioactive material resulting from the nuclear accident into an organic or inorganic material, or a built-in component and A radiation source composed of a material formed by mixing with a curing agent and having an arbitrary radiation dose is used, and the measured radiation dose is stored in an electronic medium.

  Moreover, the natural potassium mentioned above is used as another material of environmental radiation material. Any other material may be used as long as it has radiation, and here it is called environmental radiation material because a weak radiation dose is used for measurement. In the explanation of the present invention, the radioactive material due to the fall of the radioactive material mainly caused by the nuclear accident will be explained, and the case of potassium and other materials will be explained whenever necessary.

  Before the radiation dose from the radiation source is measured and acquired by the radioactivity measuring instrument before measuring the radiation dose for the food by the radioactivity measuring instrument, the food is measured by the radioactivity measuring instrument. Sometimes, even if the radiation dose is not detected, even if it is detected but very small, it is confirmed that the detected radiation value is normally measured and is computerized. .

  Embodiments of the present invention will be described below with reference to the drawings.

  In FIG. 1, a continuous food radioactivity measuring device 1 is composed of a radioactivity measuring device 2 (sometimes referred to as a radiation measuring device) and a belt conveyor device 3 that continuously conveys food. The belt conveyor device 3 includes a belt conveyor 4 that conveys food alone or in a boxed and bottled state.

  The radioactivity measuring instrument 2 includes radioactivity detection means 5 and signal processing display means 6 connected to the radioactivity detection means 5 to process and display the detection signal. Usually, the radioactivity detection means 5 is a scintillation fiber, and the detection signal is scintillation light caused by radiation input to the fiber. And the radioactivity detection means 5 is arrange | positioned in the state surrounding the to-be-detected body which is a foodstuff. Further, a personal computer 22 for management is connected to the radioactivity measuring instrument 2 as will be described later (FIG. 4). The continuous food radioactivity measuring apparatus 1 having such a structure is known and generally commercially available and used.

  Such a continuous food radioactivity measuring apparatus 1 can inspect a large amount of foods while interest in safety for “food” is increasing. Conventionally, food radioactivity measurement requires pretreatment (see the manual for food radioactivity measurement in the emergency of the Ministry of Health, Labor and Welfare) that details the target food and puts it in a container, which requires a lot of labor and time. However, the commercially available continuous food radioactivity measuring apparatus 1 employs a high-sensitivity gamma-ray detector, and can continuously and easily measure food by placing it on a belt conveyor 4 in the state of packaging such as cardboard. , Enabling total radioactivity measurement.

  And the radioactivity measuring instrument 2 used for such a continuous food radioactivity measuring apparatus 1 easily discriminates below the standard of radioactive iodine and cesium, displays the measurement result on the screen of the signal processing display means 6, and prints it. The means can be printed. Moreover, it can transmit to arbitrary personal computers via a communication means.

  The continuous food radioactivity measuring apparatus 1 can continuously perform radioactivity measurement in cereals, vegetables, fruits, meat, and other foods. According to the food radioactivity measurement manual described above, when measuring food with the food radioactivity measuring instrument 2, the radiation dose is previously measured using a radiation source (sometimes referred to as radioactive radiation source). It is required to be able to confirm that the radioactivity measuring instrument 2 has ensured measurement accuracy by measuring with the measuring instrument 2.

  In this embodiment, an environmental radiation source manufactured using an environmental radiation material is used to quickly and inexpensively configure a radiation source having an arbitrary radiation dose, and the information obtained therefrom can be utilized. Features.

  Here, one of the environmental radioactive sources is a plant or / and soil that contains radioactive materials (including natural radioactive materials) due to the fall of the radioactive materials resulting from the nuclear accident. It is a radiation source composed of a material, or a material formed by mixing a built-in component and a curing agent (curing material). As another environmental radioactive source, there is a radioactive source manufactured using potassium existing in nature. As is well known, potassium contains potassium 40, which is a radioisotope, and is suitable as a radiation source material. Potassium 40 undergoes beta decay at a rate of 89% and emits beta rays with a maximum energy of 1.31 MeV. Potassium sulfate fertilizer can be used in producing the radiation source. Natural potassium can be collected to produce a radioactive source. Other environmental radioactive sources include Agrinierite, brown olivine, uranium-containing olivine, samarsky stone, trogam stone, doll stone, specific stone, Kasoro stone (each 0.2 μSv / h), uranium ore (0. 5 μSv / h), Davidite (0.4 μSr / h), or the like can be used. Since the environmental radiation source has a different composition for each manufactured radiation source, each radiation source has an arbitrary radiation dose. It is not necessary to have a radiation source with a reference radiation dose.

  These radiation sources include the following radiation sources. Radiation sources with different radiation doses are constructed.

  A radiation source manufactured using soil (including rock, ore, stone, and deciduous humus) to which radioactive material (including natural radioactive material) is attached due to the fall of radioactive material resulting from the nuclear accident.

  Plants (including rice, vegetables, weeds, dead leaves, and fallen leaves) produced in soil where radioactive materials have adhered, mixed, and dissolved due to the fall of radioactive materials resulting from the nuclear accident, and radioactive materials have adhered to them due to the fall of radioactive materials A radiation source produced using plants (rice, vegetables, weeds, dead leaves, fallen leaves).

  A radiation source manufactured by increasing or decreasing the concentration of radioactive material to a predetermined level by washing and decontamination of soil with radioactive material attached.

  Plants (including rice, vegetables, weeds, dead leaves and fallen leaves) produced in soil with radioactive substances attached, mixed and dissolved, and plants with attached radioactive substances (rice, vegetables, weeds, dead leaves, fallen leaves) A radiation source that is manufactured by increasing or decreasing the radioactive substance concentration to a predetermined concentration.

  A radiation source in which the above-described radiation source is a solution and a solid.

  A radiation source manufactured by sealing and sealing the radiation source described above in a container.

  In the above-mentioned radiation source that emits α particles, the radiation source uses a container having a thickness that does not block the passage of α particles.

  The radiation source that emits alpha particles, beta rays, and gamma rays in the radiation source described above is a radiation source that uses the above-described vessel and does not block the emission of beta rays and gamma rays.

  A radiation source that uses a container that does not block the emission of beta and gamma rays.

  In the radiation source described above, the radiation source container that emits gamma rays uses a container that does not block the emission of gamma rays.

  The container that uses the above-mentioned radiation source and is sealed and sealed is a radiation source that uses a container according to the ISO 2919 class.

  A radiation source that uses other grains instead of rice.

  In this embodiment, these radiation sources do not require strict adjustment of concentration until a predetermined amount of radiation dose can be measured, and each radiation source has an individual radiation dose and simulates a real thing. One feature is that it is configured as a volumetric radiation source and has an arbitrary radiation dose individually. Another feature is that this arbitrary radiation is measured in advance, acquired, and stored in a storage medium. In this case, both the food ID information of the radiation source attached to the simulated food and the food ID information of the simulated food are stored.

  FIG. 2 shows a radiation source, i.e., a simulated food radiation source 10, that becomes a food simulating a real food with respect to the real food figure to be measured. FIG. 2 shows examples of apples, fish, vegetables, bagged rice, boxed fish, and bottled juice. Of course, a volume type radiation source that is an example of a real food can be easily considered for foods other than these examples. FIG. 2 shows a simulated food radiation source 10 simulating apples, fish, vegetables, bagged rice, boxed fish, and bottled juice, but as shown on the right side, simulated food The radiation source 10 may be an arbitrary shape such as a simple vertical (solid) sphere, a sphere, or a cylinder. Here, since it will be demonstrated before actual measurement of food, it will be called a simulated food radiation source.

  FIG. 3 shows a process for creating the simulated food radiation source 10.

  In FIG. 3, plants or soil as environmental radiation materials are collected (S1). The environmental radiation material is derived from the nuclear accident and the plant or soil has contained a radioactive substance, and those existing in the vicinity of the nuclear accident are targeted. A typical example of “containing” is adhesion, but is not limited to adhesion, and includes inclusion, dissolution, or absorption.

  The collected environmental radioactive material is pulverized (S2), mixed with a built-in component of organic material or inorganic material, and stirred and homogenized (S3).

  A curing agent is added to the stirred and homogenized material (S4). In the next step, it is not necessary to add a curing agent when it is stored in a container. As the organic material, general organic materials can be used. A typical example is gelatin. Other examples are konjac and mannan. Since gelatin has a function as a coagulating material, gelatin has a function as a hardener. Various curing agents are commercially available, and these commercially available curing agents can be used. Further, a resin solution may be used as the built-in component. For the mixing and stirring, a centrifugal mixing stirrer HM-500 manufactured by Keyence Corporation can be used. When gelatin is used, since gelatin is fluid, the simulated food radiation source 10 can be produced in a soft form. For example, it can be easily manufactured by using gelatin to manufacture a fish with a flat shape, and it is possible to easily create a state similar to an actual distribution form. That is, the simulated food radiation source 10 can be made in a form close to the real thing.

  The gelled material formed by mixing the built-in component or the built-in component and the curing agent is formed into a simulated food form (S5). The simulated food form is injected into a container having a simulated food shape, for example, a plastic container. In the case of fish boxing, a radioactive source in the form of a simulated fish is packed in cardboard along the actual arrangement. The same applies to fruits. Whether or not the curing agent is mixed may be selected according to the form of the real food. When the food is food juice, the container is used as a simulated food radiation source. In the case of fruit, the simulated food radiation source 10 is configured to include the container or removed from the container. That is, integration with the container or desorption from the container is performed (S6), and the simulated food radiation source 10 is created (S7).

  The simulated food radiation source 10 can be formed by mixing a food material of the same quality as food measured by a radioactivity measuring instrument with a built-in component of an organic material or an inorganic material. However, it is difficult to produce a radiation source with such materials. Thus, when it is difficult to obtain food, it is substituted with radioactive plant or soil that is not corrosive or less corrosive.

  The plant containing the radioactive substance can be formed by any combination of cereals, fruits, vegetables, weeds, leaves, or the like, to which the radioactive substance has adhered due to the fall of the radioactive substance.

  In the case of using potassium sulfate fertilizer in manufacturing the radiation source, it can be manufactured by grinding potassium sulfate fertilizer, placing it in a mold, setting it in a compression device, and applying pressure with a hydraulic device. Natural radioactive radiation sources are advantageous because they are not subject to legal restrictions.

  FIG. 4 shows a method for confirming the measurement accuracy of the radioactivity measuring instrument. This method includes a process for producing an electronic medium and a process for confirming the measurement accuracy of the radioactivity measuring instrument.

  In FIG. 4, a simulated food radiation source 10 is created according to the process shown in FIG. 3 (S11), and the intensity of radioactivity, that is, the radiation dose for this simulated food radiation source 10 is measured and converted into data (S12). . The converted radiation dose is taken into a personal computer together with the radiation source ID information and can be displayed on the personal computer screen. If not displayed, it should be visible in response to simulated food radiation. When this measured radiation dose is compared with the pre-acquired radiation dose of the simulated food radiation source 10 and is within the allowable range, the radiation measuring instrument 2 is in a normal state and performs a normal measurement. Therefore, it is determined that the device can perform radioactivity measurement. The determination as to whether or not the value is within the allowable value range may be performed by arithmetic processing means of the personal computer, or may be performed by displaying on the screen and making a comparison determination by the operator. If the operator makes a decision, the result is input to the personal computer. Therefore, the measurement value measured by the radioactivity measuring instrument 2 in the normal state is determined and confirmed as a normal measurement value. A normal measurement value is output by being printed on a screen or by printing means. It is preferable to add a check mark indicating that the measurement result is a result of normal state measurement to the output measurement value. The check mark may be a circle mark or a pique mark, and when the radiation measuring instrument is installed, an identification mark that is displayed with a pass / fail judgment regarding accuracy may be used. A check mark shaped like a food may be used. A measurement value with this check mark also proves that the measurement has been correctly performed, and also serves as a mark when the purchaser purchases the product with confidence. In particular, this check mark is important when the measured radiation dose is a small value such as a predetermined reference value or less, or a measured value of zero. Of course, when measuring the radioactivity using the simulated food radiation source 10, protective means must be employed in the vicinity of the belt conveyor 4.

  A plant or / and soil that contains radioactive materials due to the fall of radioactive materials caused by the nuclear accident, and is a material formed by mixing organic or inorganic built-in components, or by mixing built-in components and hardeners. Constructed, simulated food radiation source with a solid or fluid-contained simulated food radiation source that mimics the shape of the food to be measured with the radioactivity measuring instrument, and a food that simulates the shape of the simulated food radiation source Is stored in an electronic medium as a storage medium. An electronic medium storing such information is a target for providing information services and can be paid for. The electronic medium may store information indicating that paying has been transferred.

  An electronic medium storing such information can be installed in a personal computer in the same manner as a general electronic medium. That is, an electronic medium is installed in a personal computer that is connected to a radioactivity measuring instrument and can input radiation data measured by the radioactivity measuring instrument. Electronic media PCs are installed regularly before the operation day of the radioactivity measuring instrument, and data is acquired.

  When the electronic medium was installed on a personal computer, the food was stored on the personal computer based on the radiation data measured and acquired by installing the simulated food radiation source on the radioactivity measuring instrument and the stored food information. Contrast the radiation dose on the screen. The electronic information of the electronic medium may be taken into a personal computer via a communication circuit. The measurement accuracy of the radioactivity measuring instrument is confirmed from the comparison between the two generated on the screen. This measurement accuracy can be confirmed by an operator viewing the screen and inputting confirmation information, or by setting a threshold value in advance on an electronic medium and using a computer calculation function. You may make it confirm. In any case, confirmation information on the measurement accuracy of the radioactivity measuring instrument confirmed from the comparison between the two is input to the personal computer. After the confirmation information is input, the electronic medium displays a personal computer screen with a check mark indicating that the measurement accuracy of the radioactivity measuring instrument has been confirmed to the radiation data measured by the radiation measuring instrument 3. Make the device display on the screen. Such a function by the electronic medium is achieved by using a program stored in the electronic medium by the personal computer. The food ID information for which the radiation dose is measured by the radioactivity measuring instrument and the radiation dose data measured for the simulated food radiation source 10 shaped like the food may be added to the comparison format and displayed and output. . Only information in which a check mark is added to the radiation data measured by the radioactivity measuring device 2 may be output. The output can be communicated externally over the Internet. In this way, a consumer who is a purchaser can freely browse on an Internet site, a producer's homepage, or the like. The output data can be a label printing barcode.

  An information use permission signal is input together with the radiation dose data, and information use permission processing means for performing information use permission processing is stored in the electronic medium 21 including the storage medium (S13). Information holding by this electronic medium may be incorporated in a USB ROM or directly in a personal computer as electronic information. In the case of paid transfer, it is recommended to use external media.

  When the electronic medium 21 is a USB ROM, it is directly installed in the management control personal computer 22 provided in the continuous food radioactivity measuring apparatus 1 and stored or electronic information is taken into the personal computer 22 by transmitting it through the communication means 23. The personal computer 22 may be provided in a management room provided in the continuous food radioactivity measuring apparatus 1 or may be provided in this center when there is a center that collectively controls the continuous food radioactivity measurement apparatus. Good. This personal computer 22 can have the function of the signal processing display means 6 described above. Therefore, in this case, the personal computer 22 is arranged in the vicinity of the belt conveyor 4.

The electronic medium installed directly on the personal computer 22 connected to the radioactivity meter simulates the stored food ID information and the food when an information use permission signal is input through the radioactivity meter. Radiation data measured for the simulated food radiation source 10 having the above shape is integrally displayed on the screen of the screen display means included in the signal processing display means 6 of the radioactivity measuring instrument.
When the confirmation work is completed, a check mark is displayed on the screen in a form added to the radiation dose.

  FIG. 5 is a diagram for explaining a radioactivity measurement normal measurement confirmation information provision (hereinafter referred to as “confirmation information provision”) method, provision apparatus, and provision system according to an embodiment of the present invention.

  In FIG. 4, the method for confirming the measurement accuracy of the radioactivity measuring device has been described.

  In FIG. 5, the confirmation information providing apparatus or system 100 includes an information storage 101 in an electronic medium and a personal computer operation 102. The confirmation information providing apparatus or system 100 is related to the simulated food radiation source information 103 and externally via the Internet (external communication means) 104. Connected to the user organization 105.

  The simulated food radiation source information 103 is information acquired from the simulated food radiation source 10 described above. These pieces of information include information about the formed radiation source 10, radiation dose measurement, data on the radiation dose, and food ID information of the food whose shape is simulated.

  In the information storage 101 to the electronic medium, arbitrary radiation dose acquisition, food ID information acquisition, and simulation food radiation source ID information acquisition from the simulated food radiation source information 103 are performed. A simulated food radiation source can be identified based on this ID information.

  The personal computer operation 102 is performed by installing an electronic medium for storing the above-described information in a personal computer connected to the radioactivity measuring instrument and capable of inputting radiation data measured by the radioactivity measuring instrument. That is, the personal computer operation 102 obtains radiation data, obtains confirmation information by comparing radiation dose and radiation data, obtains confirmation information by comparing radiation dose and radiation data, adds a check mark to the radiation data, and adds a check mark to the personal computer screen. It is formed by outputting the displayed screen to the outside as it is.

  The displayed screen can be used by an external user organization via the Internet 104 or stored in an electronic medium.

  More specifically, according to this embodiment, when the electronic medium is installed in the personal computer 22 that is connected to the radioactivity measuring instrument and can input radiation data measured by the radioactivity measuring instrument, From the radiation data measured and obtained by placing the simulated food radiation source simulating the food on the radioactivity measuring instrument, the stored food ID information, and the simulated food radiation source ID information, the food When the confirmation information of the measurement accuracy of the radioactivity measuring instrument confirmed from the comparison between both is compared with the radiation dose stored for the radioactivity measurement, the radioactivity measurement is performed on the radiation data measured by the radiation measurement instrument. A check mark indicating that the accuracy has been confirmed can be added and displayed on the screen of the personal computer screen display means, and output to the output means as normal measurement confirmation information. Normal measurement confirmation information providing method or providing apparatus configured.

  In addition, when the electronic medium is installed in the personal computer 22 connected to the radioactivity measuring instrument and capable of inputting radiation data measured by the radioactivity measuring instrument, the food is placed on the radioactivity measuring instrument on the personal computer. The radiation data measured by placing a simulated food radiation source simulating the shape of the food, and the stored food ID information and the radiation dose stored for the food from the simulated food radiation source ID information are compared. When the confirmation information of the measurement accuracy of the radioactivity measuring device confirmed from the comparison between the two is input, if there is no detected value for the radiation dose measured by the radiation measuring device, there is no detected value. A check mark indicating that the measurement accuracy of the radioactivity measuring instrument has been confirmed is added to the displayed radiation data and displayed on the screen of the personal computer screen display means, and output means as normal measurement confirmation information Can be output, radioactivity measurements normal measurement confirmation information providing method or providing apparatus configured.

  In addition, when the electronic medium is installed in the personal computer 22 connected to the radioactivity measuring instrument and capable of inputting radiation data measured by the radioactivity measuring instrument, the food is placed on the radioactivity measuring instrument on the personal computer. The radiation data measured by placing a simulated food radiation source simulating the shape of the food, and the stored food ID information and the radiation dose stored for the food from the simulated food radiation source ID information are compared. When the confirmation information of the measurement accuracy of the radioactivity measuring instrument confirmed from the comparison between the two is input, the radioactivity measurement measurement accuracy is confirmed in the radiation data measured by the radiation measurement instrument. A check mark simulating food is added and displayed on the screen of the personal computer screen display means, and the personal computer provides the information as normal measurement confirmation information to the outside through the communication means. Can, radioactivity measurements normal measurement confirmation information provides a method or providing the system is configured.

  In addition, when the electronic medium is installed in the personal computer 22 connected to the radioactivity measuring instrument and capable of inputting radiation data measured by the radioactivity measuring instrument, the food is placed on the radioactivity measuring instrument on the personal computer. The radiation data measured by placing a simulated food radiation source simulating the shape of the food, and the stored food ID information and the radiation dose stored for the food from the simulated food radiation source ID information are compared. When the confirmation information of the radioactivity measuring instrument measurement accuracy is generated when the comparison is within a predetermined threshold and the confirmation information is input, the radioactivity data measured by the radiation measuring instrument is added to the radioactivity data. A check mark indicating that the measurement accuracy of the measuring instrument has been confirmed is added and displayed on the screen of the personal computer screen display means, and the personal computer provides it as normal measurement confirmation information to the outside. Can, radioactivity measurements normal measurement confirmation information provides a method or providing the system is configured.

Radioactivity measurement with a radioactivity measuring instrument using a standard radiation source was not carried out as follows. FIG. 6 shows the method. Even in the case of an arbitrary radiation dose, the measurement principle using the radioactivity measuring instrument is the same.
1) First, using a structure having the same shape as the measurement object (here, a cylindrical shape is used as a reference example) and the same material, a standard radiation source is attached to the surface and measurement is performed. When performing measurement, the distance between the detector and the standard radiation source is determined accurately.
2) Next, at the position where the measurement is performed, the measurement is performed by moving in the axial direction at regular intervals.
3) When the measurement in the axial direction is finished, next, move in the circumferential direction at regular intervals, move in the axial direction at that position, and perform the measurement in 2).
4) When all the measurement points have been measured, the respective measurement results are integrated, and the conversion count [cps / Bq] is obtained from the integration of the radiation sources for the number of times used.

  When a volume source simulating an actual object is not used, measurement is performed by the above method as shown in FIG.

If there is a standard source (point source) at the measurement point 1, the detection area of the radioactivity measuring device is S, the distance between the radioactivity measuring device and the point source is L ₁ , and the source strength of the point source is Assuming Q (Bq), the γ-ray dose C incident on the radioactivity measuring device is obtained by the following equation.

Equation 1 is the efficiency of the radioactivity measuring instrument at one measurement point, calculated by moving to all positions (points) around the measurement object (cylindrical cylinder at all times) and measuring the entire cylinder The detection efficiency of the radioactivity measuring instrument is obtained by the following formula. The accuracy increases as the number of measurement points (positions) increases.

  In the measurement using a point source, it is necessary to accurately obtain the distance L so that the equation 1 can be solved. Further, as the number of measurement points increases, an L measurement error is added. Since a point source cannot be placed inside the measurement object, measurement data at the internal position cannot be obtained. Therefore, it is impossible to simulate the case where the radiation sources are uniformly distributed, and it is also impossible to simulate the shielding by the constituent member quality.

  On the other hand, in the case of a volume radiation source that simulates a real object, the conversion count can be obtained by measuring once. The case of using a volume source is shown in FIG.

  The detection efficiency of the detector when a volume source is used is obtained by the following equation.

The constituent material in the case of the volume radiation source satisfies the following conditions.
1) The external shape should be the same as the real product.
2) The source distribution is made uniform within the volume.
3) Use the material actually constructed.

This is because
1) The expected angle of the radioactivity measuring device can be made the same.
2) The blocking effect and self-absorption effect can be made the same.
3) The same material as the actual material is used as the constituent material, and it is the same as the actual shielding effect of γ rays, beta rays, or α particles. Alternatively, a material having an equivalent effect is used.

  There are various source materials used for the volume source as described above, but here, soil (contaminated soil) is used as an example.

FIG. 8 shows an example of γ-ray measurement results using a simulated food radiation source using contaminated soil.
1) First, a certain amount of appropriate contaminated soil is collected, and γ-rays are measured with a γ-ray detector (radioactivity measuring device) to determine the emission nuclide and its content (Bq number).
2) When the Bq number of the γ-ray emitting nuclide is obtained, the contaminated soil and the measurement object (here, rice) are agitated well to obtain a uniform distribution. In the case of rice, it mixes well with contaminated soil, but vegetables, fruits, watermelons and other shapes that cannot be mixed with actual materials are mixed uniformly with contaminated soil using various alumina grains.
3) Mixture created in 1) in a container with the same shape as the object to be measured (in this case, a 1-L marinelli container is selected or created for vegetables, fruits, watermelons, etc.) Insert.
4) The γ-ray nuclide obtained in 1) and the Bq number thereof are displayed on the surface of the 1 L marinelli container and used as a standard volume radiation source.

  A standard volume radiation source is used for confirmation of measurement accuracy, but can also be used for calibration. In this embodiment, it is not necessary to obtain a constant radioactivity value measured by a standard volume source. A radioactive ray source imitating a real fruit is formed as an arbitrary radiation dose and volume ray source, and functions sufficiently for prior confirmation of measurement accuracy. Since the produced radioactive ray source is different in material, the radioactive dose value is different. Therefore, individual dose values measured in advance are secured as electronic information.

  According to the γ-ray measurement results shown in FIG. 8, measurement results for various radionuclides can be obtained by using a simulated food radiation source. Unlike the cases where specific nuclides are employed, the radioactivity The measurement result of the measurement device can be handled as a result of a source of various nuclides, and confirmation with higher reliability is expected for confirmation of measurement accuracy. At this time, the area of the energy peak is obtained, and the detection efficiency of the radioactivity measuring instrument can be obtained from the Bq number of the corresponding γ-ray energy of the standard volume radiation source. Such detection values are accurate enough to be used for calibration of radioactivity measuring instruments. When used for calibration of a radioactivity measuring instrument, it is important to configure it as a standard volume radiation source, but when using it for measurement accuracy confirmation, acquire the radioactivity intensity indicated by the created radioactivity radiation source. Can be used for confirmation.

  According to the above embodiment, the radiation dose from the radiation source is measured and acquired by the radioactivity meter before measuring the radiation dose for the food by the radioactivity meter. When the food is measured in (1), if the measured value is less than a predetermined reference value, especially when the radiation dose is not detected, the detected value is measured normally. A measurement accuracy check method is provided. And the radioactivity measuring instrument measurement accuracy confirmation method in which the measurement value combined with the check mark is output is provided.

  In addition, the radioactivity measuring instrument measurement accuracy is such that any radiation dose from the simulated food radiation source is measured and acquired by the radioactivity measuring instrument before measuring the radiation dose for the food by the radioactivity measuring instrument. A confirmation method is provided.

  In this example, taking advantage of the performance of the radioactivity measuring apparatus, the radioactivity measuring apparatus is below the reference value with the radioactivity measuring apparatus ensuring normal accuracy, and as a typical example, the radiation dose that radioactivity was not detected. Even when data is acquired, this value can be quickly verified as correct.

  In addition, this embodiment enables rapid measurement of the radioactive dose as described above, and the verification of the measurement of the radioactivity for the food to be measured is performed in a state similar to the shape of the actual food. As a result, the measurement of the radioactivity measuring device is performed so accurately that the radioactivity measuring device can be calibrated, and the purchaser can confirm visually sufficiently.

  In addition, the present embodiment provides a radiation source that is suitable for use in confirming the measurement accuracy of such a radioactivity measuring apparatus, can be easily formed, and is inexpensive.

  In addition, the present embodiment can provide execution information for easily performing the measurement accuracy confirmation of the radioactivity measurement apparatus with the confirmation of the measurement accuracy of the radioactivity measurement apparatus. .

DESCRIPTION OF SYMBOLS 1 ... Continuous food radioactivity measuring apparatus, 2 ... Radioactivity measuring device, 3 ... Belt conveyor apparatus, 4 ... Belt conveyor, 5 ... Radioactivity detection means, 6 ... Signal processing display means, 21 ... Electronic medium, 22 ... Personal computer, 23: Communication means.

The present invention relates to a radioactivity measurement value normal measurement confirmation information providing method, providing apparatus, and providing system at the time of measuring radioactivity of food .

In view of this point, the present invention makes use of the performance of the radioactivity measurement device, and the food that enables quick verification that the radioactivity measurement device can measure the radioactivity dose in a state where normal accuracy is ensured. The purpose is to provide radioactivity measurement value normal measurement confirmation information at the time of radioactivity measurement for food by establishing a radioactivity measurement device measurement accuracy confirmation method at the time of radioactivity measurement.

In addition, the present invention enables rapid measurement of the radioactive dose as described above, and verification of the measurement of the radioactivity of the food to be measured is performed in a state similar to the shape of the actual food. Establishing a radioactivity measuring device measurement accuracy confirmation method when measuring the radioactivity of foods so that the buyer can visually confirm that the radioactivity measurement values during food radioactivity measurement Normal measurement confirmation information The purpose is to provide.

In the present invention, when measuring the radiation dose of food with a radioactivity meter , the radioactivity meter ensures measurement accuracy by measuring the radiation dose with the radioactivity meter in advance using a radiation source. In the method of providing information on the normal measurement confirmation of radioactivity measurements at the time of radioactivity measurement on foods, providing measurement confirmation information,
Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. Arbitrary radiation dose measured for a simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is loaded into a personal computer that is connected to the radioactivity measuring instrument and can input the radiation data measured by the radioactivity measuring instrument, the radiation at the time of radiation measurement of food is stored in the personal computer. Stored for the simulated food radiation source based on the radiation data based on the radiation dose and the ID information obtained and measured by placing the simulated food radiation source simulating the food on the performance measuring instrument. by comparing with said any radiation dose is, the confirmation information of radioactivity measuring instrument measurement accuracy was confirmed by comparison between both is input, measured acquired by the radiation measurement apparatus during radiation measurement of foods table measured acquired radiation data, by adding a check mark indicating that the radioactivity measurement instrument measurement accuracy was confirmed on the screen of the computer screen display means for It is allowed to provide the radioactivity measurements normal measured confirmation information providing method during radioactivity measurements for food which is output to the output means as a normal measurement confirmation information about the food.

In addition, the present invention provides the measurement accuracy of the radioactivity measuring instrument by measuring the radiation dose in advance using a radiation source when measuring the radiation dose of the food by the radioactivity measuring instrument. In the radioactivity measurement normal measurement confirmation information provision method at the time of radioactivity measurement for food, confirming that it is secured and providing measurement confirmation information,
Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. Arbitrary radiation dose measured for a simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is loaded into a personal computer that is connected to the radioactivity measuring instrument and can input the radiation data measured by the radioactivity measuring instrument, the radiation at the time of radiation measurement of food is stored in the personal computer. Stored for the simulated food radiation source based on the radiation data based on the arbitrary radiation dose and the ID information measured and acquired by placing the simulated food radiation source simulating the food on the performance measuring instrument by comparing with said any radiation dose is, the confirmation information of radioactivity measuring instrument measurement accuracy was confirmed by comparison between both is input, measured acquired by the radiation measurement apparatus during radiation measurement of foods check mer when the radiation dose is that no detection value indicates that the radioactivity measurement instrument measurement accuracy was confirmed to display the radiation data that no detection value for the The by addition are displayed on the screen of the computer screen display means, a normal measurement confirmation information as the output unit radioactivity measurements normal measured confirmation information providing method during radiation measurement for food which is output for the food I will provide a.

In addition, the present invention provides the measurement accuracy of the radioactivity measuring instrument by measuring the radiation dose in advance using a radiation source when measuring the radiation dose of the food by the radioactivity measuring instrument. In the radioactivity measurement normal measurement confirmation information provision method at the time of radioactivity measurement for food, confirming that it is secured and providing measurement confirmation information,
Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. Arbitrary radiation dose measured for a simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is loaded into a personal computer that is connected to the radioactivity measuring instrument and can input the radiation data measured by the radioactivity measuring instrument, the radiation at the time of radiation measurement of food is stored in the personal computer. Stored for the simulated food radiation source based on the radiation data based on the arbitrary radiation dose and the ID information measured and acquired by placing the simulated food radiation source simulating the food on the performance measuring instrument by comparing with said any radiation dose is, the confirmation information of radioactivity measuring instrument measurement accuracy was confirmed by comparison between both is input, measured acquired by the radiation measurement apparatus during radiation measurement of foods the radiation data for the screen of by adding a check mark simulating the food indicating that radioactivity meter measurement accuracy was confirmed computer screen display means Is displayed, the computer provides a normal measured confirmation information as the radioactivity measurements normal measured confirmation information providing method during radiation measurement for food and providing to the outside through the communication means of said food .

In addition, the present invention provides the measurement accuracy of the radioactivity measuring instrument by measuring the radiation dose in advance using a radiation source when measuring the radiation dose of the food by the radioactivity measuring instrument. In the radioactivity measurement normal measurement confirmation information provision method at the time of radioactivity measurement for food, confirming that it is secured and providing measurement confirmation information,
Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. Arbitrary radiation dose measured for a simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is loaded into a personal computer that is connected to the radioactivity measuring instrument and can input the radiation data measured by the radioactivity measuring instrument, the radiation at the time of radiation measurement of food is stored in the personal computer. Stored for the simulated food radiation source based on the radiation data based on the arbitrary radiation dose and the ID information measured and acquired by placing the simulated food radiation source simulating the food on the performance measuring instrument by comparing with said any radiation dose is, the confirmation information of radioactivity measuring instrument measurement accuracy when the difference between the measured acquired radiation data and stored radiation dose from a comparison of both are within a predetermined threshold generated, if the confirmation information is input, the radiation data for the food measured acquired by the radiation measurement apparatus during radiation measurement for food, confirming radioactivity measuring instrument measuring accuracy The fact is displayed on the computer screen of the screen display means by adding a check mark indicating, the personal computer, when the radiation measurements on food and providing to the outside as a normal measurement confirmation information regarding the food Provides a method for providing information on normal measurement confirmation of radioactivity measurements.

In addition, the present invention provides the measurement accuracy of the radioactivity measuring instrument by measuring the radiation dose in advance using a radiation source when measuring the radiation dose of the food by the radioactivity measuring instrument. In the radioactivity measurement normal measurement confirmation information provision method at the time of radioactivity measurement for food, confirming that it is secured and providing measurement confirmation information,
Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. Arbitrary radiation dose measured for a simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is loaded into a personal computer that is connected to the radioactivity measuring instrument and can input the radiation data measured by the radioactivity measuring instrument, the radiation at the time of radiation measurement of food is stored in the personal computer. Stored for the simulated food radiation source based on the radiation data based on the arbitrary radiation dose and the ID information measured and acquired by placing the simulated food radiation source simulating the food on the performance measuring instrument by comparing with said any radiation dose is, the confirmation information of radioactivity measuring instrument measurement accuracy was confirmed by comparison between both is input, measured acquired by the radiation measurement apparatus during radiation measurement of foods the radiation data for the radioactivity meter measurement accuracy by adding a check mark indicating that it is confirmed by the display on the screen of the computer screen display means, the diet Providing radioactivity measurements normal measured confirmation information providing apparatus when the radiation measurements for food which is output as a normal measurement confirmation information.

In addition, the present invention provides the measurement accuracy of the radioactivity measuring instrument by measuring the radiation dose in advance using a radiation source when measuring the radiation dose of the food by the radioactivity measuring instrument. In the radioactivity measurement normal measurement confirmation information providing device at the time of radioactivity measurement for foods, confirming that it is secured and providing measurement confirmation information,
Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. Arbitrary radiation dose measured for a simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is loaded into a personal computer that is connected to the radioactivity measuring instrument and can input the radiation data measured by the radioactivity measuring instrument, the radiation at the time of radiation measurement of food is stored in the personal computer. Stored for the simulated food radiation source based on the radiation data based on the arbitrary radiation dose and the ID information measured and acquired by placing the simulated food radiation source simulating the food on the performance measuring instrument When the confirmation information of the measurement accuracy of the radioactivity measuring device confirmed from the comparison between the two is compared with the given radiation dose, the food measured and acquired by the radiation measuring device at the time of radiation measurement of the food If the radiation amount is that no detection value, check indicates that the radioactivity measurement instrument measurement accuracy was confirmed to display the radiation data that no detection value Ma of By adding a click to display on the screen of the computer screen display means, the radioactivity measurements normal measured confirmation information providing apparatus when the radiation measurements for food which is output as a normal measurement confirmation information regarding the food provide.

In addition, the present invention provides the measurement accuracy of the radioactivity measuring instrument by measuring the radiation dose in advance using a radiation source when measuring the radiation dose of the food by the radioactivity measuring instrument. In the system for providing information on the normal measurement confirmation of radioactivity measurements at the time of radioactivity measurement for foods, confirming that it is secured and providing measurement confirmation information,
Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. Arbitrary radiation dose measured for a simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is loaded into a personal computer that is connected to the radioactivity measuring instrument and can input the radiation data measured by the radioactivity measuring instrument, the radiation at the time of radiation measurement of food is stored in the personal computer. Stored for the simulated food radiation source based on the radiation data based on the arbitrary radiation dose and the ID information measured and acquired by placing the simulated food radiation source simulating the food on the performance measuring instrument When the confirmation information of the measurement accuracy of the radioactivity measuring device confirmed from the comparison between the two is compared with the above-mentioned arbitrary radiation dose, the food measured and acquired by the radiation measuring device at the time of radiation measurement for the food of the radiation data, by adding a check mark simulating the food indicating that radioactivity meter measurement accuracy was confirmed on the screen of the computer screen display means Not shown,
Provided is a system for providing information on normal measurement confirmation of radioactivity measurement at the time of radiation measurement of food , characterized in that the personal computer provides the normal measurement confirmation information on the food to the outside via communication means.

In addition, the present invention provides the measurement accuracy of the radioactivity measuring instrument by measuring the radiation dose in advance using a radiation source when measuring the radiation dose of the food by the radioactivity measuring instrument. In the system for providing information on the normal measurement confirmation of radioactivity measurements at the time of radioactivity measurement for foods, confirming that it is secured and providing measurement confirmation information,
Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. Arbitrary radiation dose measured for a simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is loaded into a personal computer that is connected to the radioactivity measuring instrument and can input the radiation data measured by the radioactivity measuring instrument, the radiation at the time of radiation measurement of food is stored in the personal computer. Stored for the simulated food radiation source based on the radiation data based on the arbitrary radiation dose and the ID information measured and acquired by placing the simulated food radiation source simulating the food on the performance measuring instrument by comparing with said any radiation dose is, the difference between the radiation dose that is stored as radiation data measured by comparison between both generates check information for radioactivity measurement instrument measurement accuracy when within a predetermined threshold value When the confirmation information is input, the radiation data for the food measured acquired by the radiation measurement apparatus during radiation measurement for food, radioactivity measuring instrument measurement accuracy was confirmed this It was allowed to add a check mark that indicates to display on the screen of the computer screen display means,
The PC provides the radioactivity measurements normal measured confirmation information providing system during radiation measurement for food and providing to the outside as a normal measurement confirmation information about the food.

The present invention uses a radiation source having an arbitrary radiation dose to make use of the performance of the radioactivity measurement apparatus, and the radioactivity measurement apparatus ensures a normal accuracy below the reference value for the food. information radioactivity was rapidly verified as correct acquired successfully for foods this value in a case where the radiation dose data and has not been detected is acquired is provided as an example.

In addition, since the present invention uses a radiation source having an arbitrary radiation dose as described above, it is possible to quickly measure the radioactive dose and to verify the measurement of the radioactivity of the food to be measured. Because it is made in a state similar to the shape of food, the measurement of the radioactivity meter is made so precise that the radioactivity meter can be calibrated, and the purchaser can visually measure the radioactivity sufficiently. establishing a confirmation of vessels of accuracy, radioactivity measurements normal measurement confirmation information upon radiation measurements for food Ru are provided.

According to the above embodiment, the radiation dose from the radiation source is measured and acquired by the radioactivity meter before measuring the radiation dose for the food by the radioactivity meter. When the food is measured in (1), if the measured value is less than a predetermined reference value, especially when the radiation dose is not detected, this detected value is the radiation for the food that is normally measured. A method for confirming measurement accuracy of a radioactivity measuring instrument during measurement is provided. And the radioactivity measuring instrument measurement accuracy confirmation information at the time of the radiation measurement about the food with which the measurement value combined with the check mark is output is provided.

Further, any radiation dose due to simulated food radiation source is measured in the radioactivity measurement instrument before measuring the radiation dose for that food by radioactivity measuring instrument, when the radiation measurements on the to be acquired food radioactivity meter measurement accuracy check information is provided.

Here, one of the environmental radioactive sources is a plant or / and soil that contains radioactive materials (including natural radioactive materials) due to the fall of the radioactive materials resulting from the nuclear accident. It is a radiation source composed of a material, or a material formed by mixing a built-in component and a curing agent (curing material) . You need not be a radiation source with criteria radiation dose.

  The present invention relates to a radioactivity measuring instrument measurement accuracy ensuring confirmation acquisition method for radioactivity measurement for food and a radioactivity measuring instrument measurement accuracy ensuring confirmation acquisition apparatus for radioactivity measurement for food.

A curing agent is added to the stirred and homogenized material (S4). In the next step, it is not necessary to add a curing agent when it is stored in a container. As the organic material, general organic materials can be used. A typical example is gelatin. Other examples are konjac and mannan. Since gelatin has a function as a coagulating material, gelatin has a function as a hardener. Various curing agents are commercially available, and these commercially available curing agents can be used. Further, a resin solution may be used as the built-in component. These mixing and stirring, it is possible to use a mixed stirrer centrifuge type. When gelatin is used, since gelatin is fluid, the simulated food radiation source 10 can be produced in a soft form. For example, it can be easily manufactured by using gelatin to manufacture a fish with a flat shape, and it is possible to easily create a state similar to an actual distribution form. That is, the simulated food radiation source 10 can be made in a form close to the real thing.

Claims (8)

Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. The radiation dose measured for the simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information on the measurement accuracy of the radioactivity measuring instrument is input, a check mark indicating that the radioactivity measurement accuracy has been confirmed is added to the radiation data measured by the radiation measurement instrument and displayed on the computer screen. A radioactivity measurement value normal measurement confirmation information providing method, characterized in that the radioactivity measurement value normal measurement confirmation information is displayed on the screen of the means and output to the output means as normal measurement confirmation information. Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. The radiation dose measured for the simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information of the measurement accuracy of the radioactivity measuring instrument is input, if the radiation dose measured by the radiation measurement instrument is assumed to have no detection value, the radioactivity is displayed in the displayed radiation data that has no detection value. A check mark indicating that the measurement accuracy of the measuring instrument has been confirmed is added and displayed on the screen of the personal computer screen display means, and output to the output means as normal measurement confirmation information. How to provide information on the confirmation of normal measurement of measured radioactivity. Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. The radiation dose measured for the simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information on the measurement accuracy of the radioactivity measuring instrument is input, a check mark simulating the food is added to the radiation data measured by the radiometry instrument to indicate that the radioactivity measurement accuracy has been confirmed. The radioactivity measurement normal measurement is characterized in that it is displayed on the screen of the personal computer screen display means, and the personal computer provides the normal measurement confirmation information to the outside through the communication means. Regular confirmation information provision method. Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. The radiation dose measured for the simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source having a shape simulating the above and the radiation dose stored for the simulated food radiation source based on the ID information are compared, and a predetermined amount is determined from the comparison of both. When the confirmation information of the radioactivity measuring instrument measurement accuracy is generated when the threshold is within the threshold, and the confirmation information is input, the radioactivity measurement accuracy is confirmed in the radiation data measured by the radiation measuring instrument. The radioactivity measurement normal measurement is characterized in that a check mark is added to display on the screen of the personal computer screen display means, and the personal computer provides the normal measurement confirmation information to the outside. Regular confirmation information provision method. Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. The radiation dose measured for the simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information on the measurement accuracy of the radioactivity measuring instrument is input, a check mark indicating that the radioactivity measurement accuracy has been confirmed is added to the radiation data measured by the radiation measurement instrument and displayed on the computer screen. A radioactivity measurement normal measurement confirmation information providing apparatus, characterized in that the radioactivity measurement value is displayed on a means screen and output as normal measurement confirmation information. Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. The radiation dose measured for the simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information of the measurement accuracy of the radioactivity measuring instrument is input, if the radiation dose measured by the radiation measurement instrument is assumed to have no detection value, the radioactivity is displayed in the displayed radiation data that has no detection value. Radioactivity measurement value characterized by adding a check mark indicating that the measurement accuracy of the measuring instrument has been confirmed, displaying it on the screen of the PC screen display means, and outputting it as normal measurement confirmation information Normal measurement confirmation information provision device. Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. The radiation dose measured for the simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source simulating the shape and the radiation dose stored for the simulated food radiation source based on the ID information are compared and confirmed from the comparison of both. When the confirmation information on the measurement accuracy of the radioactivity measuring instrument is input, a check mark simulating the food is added to the radiation data measured by the radiometry instrument to indicate that the radioactivity measurement accuracy has been confirmed. To display it on the screen of the PC screen display means,
A radioactivity measurement value normal measurement confirmation information providing system, characterized in that the personal computer provides the normal measurement confirmation information to the outside through communication means. Consists of a built-in component manufactured by mixing an environmental radiation material with an organic or inorganic material, or a material formed by mixing a built-in structural material and a curing agent. The radiation dose measured for the simulated food radiation source in a container-contained shape containing a solid or fluid and the ID information of the simulated food radiation source are stored in an electronic medium,
When the electronic information of the electronic medium is connected to a radioactivity measuring instrument and taken into a personal computer that can input radiation data measured by the radioactivity measuring instrument, the food on the radioactivity measuring instrument is stored in the personal computer. The radiation data measured and acquired by mounting the simulated food radiation source having a shape simulating the above and the radiation dose stored for the simulated food radiation source based on the ID information are compared, and a predetermined amount is determined from the comparison of both. When the confirmation information of the radioactivity measuring instrument measurement accuracy is generated when the threshold is within the threshold, and the confirmation information is input, the radioactivity measurement accuracy is confirmed in the radiation data measured by the radiation measuring instrument. Add a check mark to indicate that it is displayed on the screen of the computer screen display means,
Radioactivity measurement normal measurement confirmation information provision system, characterized in that the personal computer provides the normal measurement confirmation information to the outside.

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