JP2021073472A - Hybrid dose meter - Google Patents

Abstract

To provide a hybrid dose meter capable of easily grasping radiation dose information and suitable for improving reliability against breakage, failure or the like.SOLUTION: An electronic dose meter 220 includes: a measurement part 10 for measuring a radiation dose; a storage part 12; an arithmetic part 14 for recording integrated radiation dose information in the storage part 12 on the basis of the radiation dose measured by the measurement part 10; a display part 16 for displaying the radiation dose information on the basis of the radiation dose measured by the measurement part 10; and a radiation dose acquisition part 18 for acquiring the integrated radiation dose received by a glass dose meter 230. The arithmetic part 14, when inputting a restoration request, restores the integrated radiation dose information stored in the storage part 12 on the basis of the integrated radiation dose acquired by the radiation dose acquisition part 18.SELECTED DRAWING: Figure 1

Description

The present invention relates to a radiation dose information management system for a hybrid dosimeter equipped with an electronic dosimeter and a glass dosimeter, and in particular, for easily grasping the radiation dose information and improving reliability against damage or failure. For suitable hybrid dosimeters.

Due to the accident at the Fukushima Daiichi Nuclear Power Plant in 2011, radioactive contamination and an increase in the air dose rate of the environment have occurred over a wide area, mainly in Fukushima Prefecture. The level of environmental pollution varies from region to region, but the country recognizes that it is necessary to observe the health status of residents over a long period of time in order to investigate and investigate the pollution level and its impact on the human body.

Therefore, the dose of radiation that a person would have been exposed to in their daily activities, including those who lived or stayed in an area or facility where there is a possibility of environmental pollution by radioactive substances (hereinafter referred to as "radioactive contamination"). Those who wish to grasp the accumulation transition (hereinafter referred to as "subjects to be evaluated for radiation dose") carry a personal dose meter around their neck with a strap or the like and always carry it with them to measure their own radiation dose to measure their health condition. Is in control.

As a conventional personal dosimeter, one that measures the radiation amount received by the personal dosimeter and displays the measured radiation amount is known. Further, when the measured radiation amount exceeds a predetermined value, a warning is notified (Patent Documents 1 and 2).

JP-A-2007-101467 Japanese Unexamined Patent Publication No. 2006-350236

For those who are subject to radiation dose evaluation, it is necessary to measure the radiation dose for a long period of time, but in the case of conventional personal dosimeters and electronic dosimeters such as the dosimeters described in Patent Documents 1 and 2. , If damage or failure occurs, there is a possibility that the accumulated radiation dose information recorded so far may be lost. On the other hand, although glass dosimeters are more resistant to breakage and failure than electronic dosimeters, they cannot grasp the current radiation dose (instantaneous value). In addition, the integrated radiation dose cannot be grasped without possessing a glass dosimeter reader.

Therefore, the present invention has been made by paying attention to the unsolved problems of such conventional techniques, and it is easy to grasp the radiation amount information and improve the reliability against damage, failure, etc. It is an object of the present invention to provide a hybrid dosimeter suitable for the above.

[Invention 1] In order to achieve the above object, the radiation dose information management system of the invention 1 is a radiation dose information management system of a hybrid dose meter including an electronic dose meter and a glass dose meter, and the electronic dose meter. Is a storage means, a measuring means for measuring the radiation amount, a notification means for notifying the radiation amount information based on the radiation amount measured by the measuring means, and an integrated radiation amount based on the radiation amount measured by the measuring means. A first recording means for recording information in the storage means is provided, and an acquisition means for acquiring the integrated radiation amount received by the glass dose meter and an integrated radiation amount information based on the integrated radiation amount acquired by the acquisition means are obtained. A second recording means for recording in the storage means is provided.

With such a configuration, when the electronic dosimeter receives radiation, the measuring means measures the radiation amount, and the notification means notifies the radiation amount information based on the measured radiation amount. In addition, the first recording means records the integrated radiation amount information in the storage means based on the measured radiation amount.

Further, when the glass dosimeter receives radiation, the integrated radiation amount information according to the received radiation amount is recorded.

If the electronic dosimeter is damaged or malfunctions, replace it with a new electronic dosimeter. Then, the acquisition means acquires the integrated radiation amount received by the glass dosimeter, and the second recording means records the integrated radiation amount information in the storage means based on the acquired integrated radiation amount. Therefore, in the new electronic dosimeter, the integrated radiation dose information is restored based on the integrated radiation dose received by the glass dosimeter.

Here, the hybrid dosimeter means a dosimeter that combines an electronic dosimeter and a glass dosimeter and has one purpose, and the purpose is to measure the integrated radiation dose that is said to have been exposed to the user by two systems. There is. As long as this object is achieved, the electronic dosimeter and the glass dosimeter may be configured integrally or separately. Hereinafter, the same applies to the radiation amount information management system of Invention 3.

Further, the notification means may have any configuration as long as it is designed to notify the radiation amount information. For example, radiation is emitted by a notification method that can be perceived by the so-called five senses of sight, hearing, smell, taste and touch. Amount information can be notified. As this notification method, for example, light emission, display, printing, pronunciation, voice output, vibration, heat generation, or the like can be adopted. In addition, a notification method such as e-mail transmission or communication can be adopted. Hereinafter, the same applies to the radiation amount information management system of Invention 3.

Further, the radiation amount information notified by the notification means is a concept including the radiation amount information per unit time and the integrated radiation amount information. Hereinafter, the same applies to the radiation amount information management system of Invention 3.

Further, the acquisition means may have any configuration as long as it is designed to acquire the integrated radiation amount. For example, the integrated radiation amount may be input from an input device or the like, or may be externally used. The integrated radiation amount may be acquired or received from the terminal or the like of the above, or the integrated radiation amount may be read from a storage device, a storage medium, or the like. Therefore, acquisition includes at least input, acquisition, reception and reading. Hereinafter, the concept of acquisition is the same.

Also, electronic dosimeters and glass dosimeters are not components of the present invention. Hereinafter, the same applies to the radiation amount information management system of Invention 3.

Further, this system may be realized as a single device, a terminal or other device, or may be realized as a network system in which a plurality of devices, terminals or other devices are communicably connected. In the latter case, each component may belong to any of a plurality of devices and the like as long as they are connected to each other so as to be communicable. Hereinafter, the same applies to the radiation amount information management system of Invention 3.

[Invention 2] Further, the radiation dose information management system of the invention 2 includes a radiation dose information acquisition means for acquiring the integrated radiation dose information of the storage means and the radiation dose information acquisition means in the radiation dose information management system of the invention 1. It is provided with a determination means for determining whether or not the integrated radiation amount obtained from the integrated radiation amount information acquired in the above-mentioned acquisition means and the integrated radiation amount acquired by the acquisition means satisfy a predetermined relationship.

With such a configuration, when confirming the suitability of measurement, the integrated radiation amount received by the glass dosimeter is acquired by the acquisition means, and the integrated radiation amount information of the storage means is acquired by the radiation amount information acquisition means. Will be done. Then, the determination means determines whether the integrated radiation amount obtained from the integrated radiation amount information acquired by the radiation amount information acquisition means and the integrated radiation amount acquired by the acquisition means satisfy a predetermined relationship.

Here, to satisfy the predetermined relationship, for example, the integrated radiation amount obtained from the integrated radiation amount information acquired by the radiation amount information acquisition means (referred to as "first integrated radiation amount" in this paragraph) and the acquisition means. The acquired integrated radiation amount (referred to as "second integrated radiation amount" in this paragraph) matches, the result of calculation by a predetermined calculation formula using the first integrated radiation amount, and the second integrated radiation amount. Are in agreement, the result of calculation using the second integrated radiation amount by the predetermined calculation formula and the first integrated radiation amount are in agreement, and the predetermined calculation formula using the first integrated radiation amount. It can be mentioned that the result of the calculation by the above and the result of the calculation by the predetermined calculation formula using the second integrated radiation amount match. In addition, the difference between the first integrated radiation amount and the second integrated radiation amount is less than or equal to a predetermined value or within a predetermined range, the result of calculation by a predetermined calculation formula using the first integrated radiation amount, and the second integrated radiation amount. The difference between the and , The difference between the result of the calculation by the predetermined calculation formula using the first integrated radiation amount and the result of the calculation by the predetermined calculation formula using the second integrated radiation amount is less than or equal to the predetermined range. Can be mentioned. Hereinafter, the same applies to the radiation amount information management system of Invention 3.

[Invention 3] Further, the radiation dose information management system of the invention 3 is a radiation dose information management system of a hybrid dose meter including an electronic dose meter and a glass dose meter, and the electronic dose meter is a storage means and a storage means. A measuring means for measuring the radiation amount, a notification means for notifying the radiation amount information based on the radiation amount measured by the measuring means, and an integrated radiation amount information based on the radiation amount measured by the measuring means in the storage means. A first recording means for recording, an acquisition means for acquiring the integrated radiation amount received by the glass dose meter, a radiation amount information acquisition means for acquiring the integrated radiation amount information of the storage means, and the radiation amount information acquisition. It is provided with a determination means for determining whether or not the integrated radiation amount obtained from the integrated radiation amount information acquired by the means and the integrated radiation amount acquired by the acquisition means satisfy a predetermined relationship.

With such a configuration, when the electronic dosimeter receives radiation, the measuring means measures the radiation amount, and the notification means notifies the radiation amount information based on the measured radiation amount. In addition, the first recording means records the integrated radiation amount information in the storage means based on the measured radiation amount.

Further, when the glass dosimeter receives radiation, the integrated radiation amount information according to the received radiation amount is recorded.

When confirming the suitability of the measurement, the acquisition means acquires the integrated radiation amount received by the glass dosimeter, and the radiation amount information acquisition means acquires the integrated radiation amount information of the storage means. Then, the determination means determines whether the integrated radiation amount obtained from the integrated radiation amount information acquired by the radiation amount information acquisition means and the integrated radiation amount acquired by the acquisition means satisfy a predetermined relationship.

As described above, according to the radiation dose information management system of Invention 1, the electronic dosimeter notifies the radiation dose information based on the measured radiation dose, so that the radiation dose information can be easily grasped. The effect is obtained. In addition, if the electronic dosimeter is damaged or malfunctions, the new electronic dosimeter that has been replaced restores the integrated radiation dose information based on the integrated radiation dose received by the glass dosimeter, resulting in damage. The effect of being able to improve the reliability against failures and the like can be obtained.

Further, according to the radiation amount information management system of the invention 2 or 3, when the integrated radiation amount of the electronic dosimeter and the integrated radiation amount of the glass dosimeter satisfy a predetermined relationship, the measurement with two systems is appropriate. The effect is that you can confirm that it is being done in.

It is a figure which shows the outline of the whole structure of the system which concerns on this embodiment. It is a flowchart which shows the pulse calculation processing executed by the calculation unit 14. It is a flowchart which shows the radiation amount calculation processing executed by the calculation unit 14. It is a flowchart which shows the restoration process executed by the calculation unit 14. It is a flowchart which shows the appropriateness determination process executed by the determination unit 34. It is a figure for demonstrating the restoration method when the integrated pulse number of the electronic dosimeter 220 is periodically recorded in a server or the like.

Hereinafter, embodiments of the present invention will be described.
First, the configuration of the system according to the present embodiment will be described.

FIG. 1 is a diagram showing an outline of the overall configuration of the system according to the present embodiment.
As shown in FIG. 1, the radiation dose evaluation subject 200 carries the hybrid dosimeter 210 around his / her neck with a strap or the like at all times. The hybrid dosimeter 210 is a pair of an electronic dosimeter 220 and a glass dosimeter 230 connected by a strap or the like. Here, the radiation dose evaluation target person 200 refers to a person who has lived or stayed in an area or facility where there is a possibility of radioactive contamination in a narrow sense, but the radiation dose evaluation target person 200 possesses an identification card or the like. As a result, residents in areas where there is no possibility of radioactive contamination may be included in the target so as not to be discriminated against and to function as a control group. The hybrid dosimeter 210 measures the radiation dose received by the hybrid dosimeter 210, and since the radiation dose evaluation target 200 is closely carried, the radiation dose measured by the hybrid dosimeter 210 is It can be considered that the radiation dose to be evaluated is equivalent to the radiation dose to which the subject 200 has been exposed. The hybrid dosimeter 210 may have any method and structure as long as it can measure the radiation amount, and for example, a known dosimeter can be adopted. The electronic dosimeter 220 includes a Geiger-Muller tube type, a pin photodiode type, a scintillation type, and a semiconductor detection type. The glass dosimeter 230 includes a fluorescent glass dosimeter, a film dosimeter, a thermoluminescent dosimeter, and a dosimeter that changes in proportion to the amount of radiation received by a substance and accumulates the amount of radiation.

Next, the configuration of the electronic dosimeter 220 will be described.
The electronic dosimeter 220 can be configured as, for example, a personal dosimeter driven by a power source such as a battery. As shown in FIG. 1, the electronic dose meter 220 includes a measuring unit 10 that measures the radiation amount, a storage unit 12 that stores the integrated radiation amount information, and an integrated radiation amount based on the radiation amount measured by the measuring unit 10. The calculation unit 14 that calculates the radiation amount, the display unit 16 that displays the radiation amount information based on the radiation amount obtained by the calculation in the calculation unit 14, and the radiation amount acquisition that acquires the integrated radiation amount received by the glass dose meter 230. It is configured to include a unit 18 and an output unit 20 that outputs integrated radiation dose information of the storage unit 12.

The measuring unit 10 can be configured as, for example, a survey meter made of a pin photodiode, and when it receives radiation, it outputs a pulse (hereinafter, referred to as “measurement pulse”) indicating that the radiation has been detected.

The storage unit 12 can be configured as, for example, a non-volatile memory, and stores the integrated pulse number as integrated radiation amount information.

The calculation unit 14 can be configured as, for example, a microprocessing unit, and when a measurement pulse is input from the measurement unit 10, the integrated pulse number of the storage unit 12 is counted up.

The display unit 16 can be configured as, for example, an LCD (Liquid Crystal Display).

The radiation amount acquisition unit 18 can be configured as, for example, a glass dosimeter reader. When ultraviolet rays are applied to the glass of the glass dosimeter 230, the amount of light is read from the glass of the glass dosimeter 230 by utilizing the phenomenon (radiophotoluminescence) that emits light of the amount of light corresponding to the integrated radiation amount received by the glass. The integrated radiation amount is calculated based on the read light amount.

The output unit 20 can be configured as an interface such as USB (Universal Serial Bus), for example, and outputs the integrated pulse number of the storage unit 12.

Next, the processing of the calculation unit 14 will be described.
FIG. 2 is a flowchart showing a pulse calculation process executed by the calculation unit 14.

When the power is turned on, the calculation unit 14 initializes the value of the first integration counter for storing the integrated pulse number and the value of the second integration counter for storing the integration time in the storage unit 12, and thereafter. , The pulse calculation process shown in the flowchart of FIG. 2 is executed every predetermined cycle (for example, 200 [ms]).

When the pulse calculation process is executed, the calculation unit 14 first proceeds to step S100 as shown in FIG.

In step S100, it is determined whether or not the measurement pulse has been input from the measuring unit 10, and when it is determined that the measurement pulse has been input (YES), the process proceeds to step S102 and the value of the first integration counter is counted up. By doing so, the number of integrated pulses is counted up by "1", and the process proceeds to step S104.

In step S104, the measurement pulse waveform is displayed on the display unit 16, the process proceeds to step S106, the number of integrated pulses is displayed on the display unit 16 based on the value of the first integration counter, and the process proceeds to step S108. 2 The integration time is displayed on the display unit 16 based on the value of the integration counter, and the process proceeds to step S110.

In step S110, it is determined whether or not the number of integrated pulses is equal to or greater than a predetermined value based on the value of the first integration counter, and if it is determined to be equal to or greater than a predetermined value (YES), the process proceeds to step S112 to issue a warning. It is displayed on the display unit 16 and a series of processes is completed.

On the other hand, when it is determined in step S110 that the number of integrated pulses is not equal to or greater than a predetermined value (NO), and when it is determined in step S100 that no measurement pulse is input (NO), a series of processes is terminated.

The value of the second integration counter is counted up every predetermined cycle (for example, 1 [s]).

FIG. 3 is a flowchart showing a radiation amount calculation process executed by the calculation unit 14.
The calculation unit 14 executes the radiation amount calculation process shown in the flowchart of FIG. 3 at predetermined intervals (for example, 1 [s]) in parallel with the pulse calculation process shown in the flowchart of FIG.

When the radiation amount calculation process is executed, the calculation unit 14 first proceeds to step S200 as shown in FIG.

In step S200, the integrated pulse number [cpm] per unit time (for example, from the present to 1 minute ago) is acquired, and the process proceeds to step S202, and the acquired integrated pulse number per unit time is multiplied by a predetermined coefficient. The radiation amount [mSv / h] per unit time is calculated, the process proceeds to step S204, the calculated radiation amount per unit time is displayed on the display unit 16, and a series of processes is completed.

FIG. 4 is a flowchart showing a restoration process executed by the calculation unit 14.
The calculation unit 14 executes the restoration process shown in the flowchart of FIG. 4 every predetermined cycle (for example, 200 [ms]). In executing the restoration process, the glass dosimeter 230 is set in the radiation amount acquisition unit 18.

When the restoration process is executed, the calculation unit 14 first proceeds to step S300 as shown in FIG.

In step S300, when it is determined whether or not the restoration request of the integrated radiation dose information has been input by the operation means (not shown) or the like for the exposed radiation dose evaluation target person 200 to operate, and it is determined that the restoration request has been input. (YES) proceeds to step S302.

In step S302, the radiation amount acquisition unit 18 acquires the integrated radiation amount from the glass dosimeter 230, proceeds to step S304, multiplies the acquired integrated radiation amount by a predetermined coefficient to calculate the integrated pulse number, and then steps S306. The calculated number of integrated pulses is recorded in the first integrated counter, and a series of processes is completed.

On the other hand, when it is determined in step S300 that the restoration request is not input (NO), a series of processes is terminated.

Next, the configuration of the glass dosimeter 230 will be described.
The glass dosimeter 230 can be configured as, for example, a fluorescent glass dosimeter. The glass dose meter 230 utilizes the chemical changes of silver ions in silver-activated phosphate glass, and is a silver divalent ion (Ag ²⁺ ) or silver particles (Ag ^{0) generated by radiation.} ) Is extremely stable, so the loss of integrated radiation dose information is extremely small, less than 1% per year. Further, since the fluorescence center does not disappear even after measurement and can be read repeatedly many times, the statistical accuracy of measurement can be improved and a stable measured value can be obtained.

Next, the configuration of the inspection device 240 will be described.
The inspection device 240 is a device that inspects whether or not the measurement by the two systems of the electronic dosimeter 220 and the glass dosimeter 230 is appropriate, and is installed in, for example, a school, a hospital, a public institution, or the like. Is.

As shown in FIG. 1, the inspection device 240 includes a radiation amount acquisition unit 30 that acquires the integrated radiation amount received by the glass dosimeter 230, an input unit 32 that inputs integrated radiation amount information from the electronic dosimeter 220, and an input unit 32. Judgment unit 34 that makes an appropriate judgment based on the integrated radiation amount information input by the input unit 32 and the integrated radiation amount acquired by the radiation amount acquisition unit 30, and measurement by two systems based on the judgment result of the judgment unit 34 is appropriate. Alternatively, it is configured to have a display unit 36 for displaying that it is inappropriate.

The radiation amount acquisition unit 30 can be configured in the same manner as the radiation amount acquisition unit 18, and the display unit 36 can be configured in the same manner as the display unit 16.

The input unit 32 can be configured as an interface such as USB, for example, and the integrated pulse number is input from the output unit 20.

The determination unit 34 can be configured as, for example, a microprocessing unit, and the difference between the integrated radiation amount corresponding to the integrated number of pulses input by the input unit 32 and the integrated radiation amount acquired by the radiation amount acquisition unit 30 is predetermined. It is determined whether or not it is as follows.

Next, the processing of the determination unit 34 will be described.
FIG. 5 is a flowchart showing an appropriateness determination process executed by the determination unit 34.

The determination unit 34 executes the appropriate determination process shown in the flowchart of FIG. 5 every predetermined cycle (for example, 200 [ms]). In executing the appropriateness determination process, the output unit 20 and the input unit 32 of the electronic dosimeter 220 are connected by a cable or the like, and the glass dosimeter 230 is set in the radiation amount acquisition unit 30.

When the appropriateness determination process is executed, the determination unit 34 first proceeds to step S400 as shown in FIG.

In step S400, the radiation amount acquisition unit 30 acquires the integrated radiation amount from the glass dosimeter 230, proceeds to step S402, acquires the integrated pulse number from the electronic dosimeter 220 via the input unit 32, and steps S404. To calculate the integrated radiation amount by multiplying the acquired integrated number of pulses by a predetermined coefficient, the process proceeds to step S406.

In step S406, it is determined whether or not the difference between the integrated radiation amount of the glass dosimeter 230 acquired in step S400 and the integrated radiation amount of the electronic dosimeter 220 calculated in step S404 is less than or equal to the predetermined value. When it is determined that (YES), the process proceeds to step S408.

In step S408, the display unit 36 indicates that the measurement in the two systems is appropriate, and a series of processes is completed.

On the other hand, when it is determined in step S406 that the difference between the integrated radiation amount of the glass dosimeter 230 and the integrated radiation amount of the electronic dosimeter 220 is not less than or equal to the predetermined value (NO), the process proceeds to step S410 and two systems are used. The display unit 36 indicates that the measurement of the above is inappropriate, and a series of processes is completed.

Next, the operation of this embodiment will be described.
When the electronic dosimeter 220 receives radiation, the measuring unit 10 outputs a measurement pulse. When the measurement pulse is input, the calculation unit 14 counts up the integrated pulse number and displays the measurement pulse waveform on the display unit 16. On the display unit 16, in addition to the measurement pulse waveform, the number of integrated pulses, the integrated time, and the like are displayed. In addition, the radiation amount per unit time is also displayed by operating the operating means or the like. Then, when the total number of pulses or the radiation amount per unit time exceeds a predetermined value, a warning is displayed.

When the glass dosimeter 230 receives radiation from the glass, the integrated radiation amount information according to the received radiation amount is recorded.

If the electronic dosimeter 220 is damaged or malfunctions, replace it with a new electronic dosimeter 220. Then, when the glass dosimeter 230 is set in the radiation amount acquisition unit 18 and a restoration request is input by an operation means or the like, the radiation amount acquisition unit 18 acquires the integrated radiation amount from the glass dosimeter 230 and the acquired integrated radiation amount. The integrated number of pulses is calculated based on the above, and the calculated integrated pulse number is recorded in the storage unit 12. Therefore, in the new electronic dosimeter 220, the integrated radiation amount information is restored so that the integrated radiation amount corresponding to the integrated pulse number of the storage unit 12 and the integrated radiation amount of the glass dosimeter 230 are the same.

Next, when confirming the suitability of measurement with two systems, in the inspection device 240, the output unit 20 and the input unit 32 of the electronic dosimeter 220 are connected by a cable or the like, and the glass dosimeter 230 is connected to the radiation dose acquisition unit. When set to 30, the radiation amount acquisition unit 30 acquires the integrated radiation amount from the glass dosimeter 230, and the electronic dosimeter 220 acquires the integrated pulse number via the input unit 32. Then, the integrated radiation amount is calculated based on the acquired integrated number of pulses, and it is determined whether or not the difference between the integrated radiation amount of the glass dosimeter 230 and the integrated radiation amount of the electronic dosimeter 220 is less than or equal to the predetermined value. Will be done. As a result, when it is determined that the difference is equal to or less than a predetermined value, the display unit 36 displays that the measurement in the two systems is appropriate. On the other hand, if it is determined that the difference is not less than or equal to the predetermined value, the display unit 36 displays that the measurement in the two systems is inappropriate.

In this way, in the present embodiment, the electronic dose meter 220 stores the integrated radiation dose information based on the measurement unit 10 for measuring the radiation amount, the storage unit 12, and the radiation amount measured by the measurement unit 10. A calculation unit 14 that records in unit 12, a display unit 16 that displays radiation amount information based on the radiation amount measured by the measurement unit 10, and a radiation amount acquisition unit 18 that acquires the cumulative radiation amount received by the glass dose meter 230. When the restoration request is input, the calculation unit 14 restores the integrated radiation amount information of the storage unit 12 based on the integrated radiation amount acquired by the radiation amount acquisition unit 18.

As a result, the electronic dosimeter 220 displays the radiation amount information based on the measured radiation amount, so that the radiation amount information can be easily grasped. In addition, if the electronic dosimeter 220 is damaged or malfunctions, the integrated radiation dose information is restored based on the integrated radiation dose received by the glass dosimeter 230 in the replaced new electronic dosimeter 220. Therefore, the reliability against damage, failure, etc. can be improved.

Further, in the present embodiment, the inspection device 240 inputs the radiation amount acquisition unit 30 that acquires the integrated radiation amount received by the glass dosimeter 230, and the input unit 32 that acquires the integrated radiation amount information of the storage unit 12. A determination unit 34 for determining whether the difference between the integrated radiation amount obtained from the integrated radiation amount information acquired by the unit 32 and the integrated radiation amount acquired by the radiation amount acquisition unit 30 is equal to or less than a predetermined value is provided.

As a result, when the difference between the integrated radiation amount of the electronic dosimeter 220 and the integrated radiation amount of the glass dosimeter 230 is less than the predetermined value, it is possible to confirm that the measurement by the two systems is performed properly. it can. The radiation dose (instantaneous value) of the electronic dosimeter 220 and the integrated radiation dose of the glass dosimeter 230 are constantly, or every hour, or every 24 hours, or every period during which a reliable measurement value can be obtained from the glass dosimeter. With the configuration for comparison, it is possible to determine whether or not the radiation dose (instantaneous value) of the electronic dosimeter 220 is correct. As a result, when it is determined that the instantaneous value or the integrated radiation amount does not match, a failure or the like of the electronic dosimeter 220 can be found, and the reliability is improved. In addition, the reliability of the alarm based on the instantaneous value can be improved.

In the present embodiment, the measuring unit 10 corresponds to the measuring means of the invention 1 or 3, the storage unit 12 corresponds to the storage means of the inventions 1 to 3, and the display unit 16 corresponds to the notifying means of the invention 1 or 3. The calculation unit 14 corresponds to the first recording means of the invention 1 or 3, or the second recording means of the invention 1. Further, the radiation amount acquisition units 18 and 30 correspond to the acquisition means of the inventions 1 to 3, the input unit 32 corresponds to the radiation amount information acquisition means of the invention 2 or 3, and the determination unit 34 corresponds to the invention 2 or 3. It corresponds to the judgment means of.

[Other Embodiments]
In the above embodiment, in the new electronic dosimeter 220, the integrated radiation amount corresponding to the integrated number of pulses of the storage unit 12 and the integrated radiation amount of the glass dosimeter 230 are the same. The configuration is such that the information is restored, but the present invention is not limited to this, and when the integrated pulse number of the electronic dosimeter 220 is periodically recorded on a server or the like, the following configuration can be adopted.

FIG. 6 is a diagram for explaining a restoration method when the integrated pulse number of the electronic dosimeter 220 is periodically recorded on a server or the like.

In FIG. 6, on 4/1, the measurement by the electronic dosimeter 220 and the glass dosimeter 230 is started at the same time. If the server decides to transmit and record the integrated pulse number of the electronic dosimeter 220 at the beginning of the month, the integrated pulse number from 4/1 to 4/30 is recorded in the server on 5/1. Then, it is assumed that the electronic dosimeter 220 is damaged on 5/20 (midnight). In this case, replace with a new electronic dosimeter 220. Then, when the glass dosimeter 230 is set in the radiation amount acquisition unit 18 and a restoration request is input by an operating means or the like, the integrated pulse number (A) from 4/1 to 4/30 is acquired from the server. The integrated pulse number (A) is assumed to correspond to, for example, 1.0 [mSv]. Next, the radiation amount acquisition unit 18 acquires the integrated radiation amount (for example, 1.5 [mSv]) from the glass dosimeter 230. Since this is the integrated radiation amount from 4/1 to 5/19, 5 by subtracting the integrated radiation amount corresponding to the integrated pulse number (A) from the integrated radiation amount acquired from the glass dosimeter 230. The integrated radiation amount from 1/1 to 5/19 is calculated, and the integrated pulse number (B) is calculated based on the calculated integrated radiation amount. The integrated pulse number (B) corresponds to, for example, 0.5 [mSv]. Then, the storage unit 12 records a value obtained by adding the integrated pulse number (A) and the integrated pulse number (B). Even with such a configuration, as a result, in the new electronic dosimeter 220, the integrated radiation amount corresponding to the integrated number of pulses of the storage unit 12 and the integrated radiation amount of the glass dosimeter 230 are the same. The integrated radiation dose information is restored.

Further, in the above-described embodiment and its modification, the functions related to the restoration processing of the radiation amount acquisition unit 18 and the calculation unit 14 are built in the electronic dosimeter 220, but the present invention is not limited to this, and the glass dosimeter 230 or the inspection It can be built into the device 240 or configured as another device.

Further, in the above-described embodiment and its modification, the radiation amount acquisition unit 30, the input unit 32, the determination unit 34, and the display unit 36 are configured as the inspection device 240, but the present invention is not limited to this, and the electronic dosimeter 220 or the electronic dosimeter 220 or It can also be built into the glass dosimeter 230. When built in the electronic dosimeter 220, only one radiation amount acquisition unit 18 or 30 is required.

Further, in the above-described embodiment and its modified example, it is configured to display that the measurement in the two systems is appropriate or inappropriate based on the determination result of the determination unit 34, but the determination is not limited to this. It can also be configured to perform other processing based on the determination result of the unit 34. As another process, for example, when the difference between the integrated radiation amount of the electronic dosimeter 220 and the integrated radiation amount of the glass dosimeter 230 is less than or equal to the predetermined value, the average value of both is recorded in the database and the difference is predetermined. If it is not the following, processing such as recording the integrated radiation amount of the glass dosimeter 230 in the database can be considered.

200 ... Radiation dose evaluation target, 210 ... Hybrid dosimeter, 220 ... Electronic dosimeter, 10 ... Measurement unit, 12 ... Storage unit, 14 ... Calculation unit, 16 ... Display unit, 18 ... Radiation dose acquisition unit, 20 … Output unit, 230… Glass dosimeter, 240… Inspection device, 30… Radiation dose acquisition unit, 32… Input unit, 34… Judgment unit, 36… Display unit

Claims (3)

A radiation dose information management system for hybrid dosimeters equipped with electronic dosimeters and glass dosimeters.
The electronic dosimeter includes a storage means, a measuring means for measuring a radiation amount, a notification means for notifying radiation amount information based on the radiation amount measured by the measuring means, and a radiation amount measured by the measuring means. It is provided with a first recording means for recording the integrated radiation amount information in the storage means based on the above.
An acquisition means for acquiring the integrated radiation amount received by the glass dosimeter, and
A radiation amount information management system including a second recording means for recording integrated radiation amount information in the storage means based on the integrated radiation amount acquired by the acquisition means. In claim 1,
Radiation amount information acquisition means for acquiring integrated radiation amount information of the storage means, and
It is characterized by including a determination means for determining whether or not the integrated radiation amount obtained from the integrated radiation amount information acquired by the radiation amount information acquisition means and the integrated radiation amount acquired by the acquisition means satisfy a predetermined relationship. Radiation dose information management system. A radiation dose information management system for hybrid dosimeters equipped with electronic dosimeters and glass dosimeters.
The electronic dosimeter includes a storage means, a measuring means for measuring a radiation amount, a notification means for notifying radiation amount information based on the radiation amount measured by the measuring means, and a radiation amount measured by the measuring means. It is provided with a first recording means for recording the integrated radiation amount information in the storage means based on the above.
An acquisition means for acquiring the integrated radiation amount received by the glass dosimeter, and
Radiation amount information acquisition means for acquiring integrated radiation amount information of the storage means, and
It is characterized by including a determination means for determining whether or not the integrated radiation amount obtained from the integrated radiation amount information acquired by the radiation amount information acquisition means and the integrated radiation amount acquired by the acquisition means satisfy a predetermined relationship. Radiation dose information management system.

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