WO2013057803A1

WO2013057803A1 - Radiation and ion detection device equipped with correction device and analysis display device and analysis display method

Info

Publication number: WO2013057803A1
Application number: PCT/JP2011/074036
Authority: WO
Inventors: 長門大矢
Original assignee: Oya Nagato
Priority date: 2011-10-19
Filing date: 2011-10-19
Publication date: 2013-04-25

Abstract

[Problem] To provide, although it is generally difficult to detect radioactive materials present in a material, a technique for detecting the radioactive materials. [Solution] When radiation travels inside a material, the material is ionized, in which part of the ionized material is recombined and the remaining ionized material is polarized on the surface of the material. Therefore, it is possible to know an ionized state in the material by using an analysis display device (4) or a correction analysis display device (5) in such a way that: a voltage is applied to a dielectric counter tube (1) including a thin film dielectric material used in a detection portion of the dielectric counter tube to more strongly electrically induce ionized matter that is present and to detect a resulting small potential difference; and the potential difference is amplified by an amplifier (2) and corrected according to the temperature by a correction device (3) or a thermometer (6). In addition, although being weak, each type of radiation can also be directly detected. It cannot be determined that being in an ionized state is always caused by radiations, but in a material that cannot be normally ionized, it can be said that an abnormality is occurring. Since an ionized state in a material is known, it also becomes possible to determine the presence or absence of tumor, pain in an affected area of human, and the like.

Description

[Name of Invention Determined by ISA Based on Rule 37.2] Radiation and Ion Detection Device and Analysis Display Method Comprising Correction Device and Analysis Display Device

In the present invention, radiation is detected even in an ion recombination region whose voltage is lower than the voltage of a counter tube normally used in a radiation detector, and even when the radiation is in a substance that does not reach the outside, it is applied to the surface of the ionized substance. Dielectric detection of the charged ionic substance can be performed by charging the dielectric thin film, and according to the present invention, peripheral ionized matter and radiation can be detected quickly and safely and easily without destroying the test substance.

Currently, radiation detection is performed using Geiger counters, proportional counters, and semiconductor detectors.

As a technique of such a radiation detection method, as shown in Non-Patent Document 1, the Geiger counter detects the number of radiations, the proportional counter shown in Patent Document 1 detects the energy of radiation, The semiconductor detector shown applies a technology such as a CCD, and a high voltage is used, and the tube used for the detector must be filled with gas or requires high technical skills.

International Publication No. 2008/059966 Japanese Patent Application No. 04-230058

The Geiger-Muller counters and semiconductor detectors described above have been widely used to specify the number of radiations, and the proportional counters to identify substances. However, since high voltage is used, it is necessary to be careful, and it requires technical skill and cost in the manufacturing process. This method will be adopted to simplify the process and allow anyone to make it.

Usually, radiation sources such as α rays and β rays are extremely difficult to measure when taken into the human body.

The present inventor considered the voltage detected by the counter and the graph of radiation in FIG. 6 and used the voltage portion of the recombination region which is not normally used to amplify and detect a weak voltage change.

In addition, not only the identification of substances containing radioactive substances by examining the ionization state in the space, but also radiation exposure, inflammation, and ionization in the body for medical use, burns, tumors, pain, etc. The situation can also be detected.

Therefore, the present inventor has completed what detects the dielectric by detecting what is ionized by radiation or the like using low voltage and normal air which are not normally used.

The invention according to claim 1 is the detection device for measuring radiation and ions, and the detection device is an electromagnetic shield, a counter, an amplifier, a correction device, and an analysis display device. The incident window can be covered with a net-like or foil-like electromagnetic shield to specify the type of static electricity and radiation from the periphery and the contact portion, and the counter tube may be touched by a hand. In order to prevent static electricity, it is covered with an insulator (paint, paper, rubber, etc.), and the counter tube has the same structure as a normal GM tube or proportional counter tube, but the electric cathode anode is reversed to the counter tube. It is possible to increase the dielectric property by applying the dielectric thin film, the internal gas and the operating voltage are different, and the dielectric thin film is a dielectric thin film (plastic [polyethylene], etc.) where the radiation entrance window is dielectric. Therefore, dielectric detection from externally charged substances in the ionized state that is covered, and the atmosphere and substances that have been ionized through radiation passing through the electric field region where a low voltage is applied inside the counter tube. In this case, the internal gas uses normal air or an inert gas, and the operating voltage is a low voltage in the recombination region, and the amplifier is supplied to the amplifier. In order to obtain a more accurate energy value, the correction device can supplement the influence of temperature and the like, and the analysis display device can calculate the energy value by radiation. It is obtained by measuring the voltage and measured using a voltmeter, oscilloscope, PC, etc.
By analyzing the result, it is characterized in that it is possible to specify the intensity of radiation and the line type and substance.

The invention described in claim 2 uses the low voltage region of the recombination region which is not normally used in the Geiger-Muller counter tube and the proportional counter tube in the counter tube described in claim 1, and is used for the detector. It is possible to do this.

The invention described in claim 3 is a counter tube according to claim 1, in which the electricity inside the counter tube is applied to the cathode anode in the opposite direction as compared with a normal counter tube, thereby increasing the dielectric property and measuring. It is characterized by being able to.

According to a fourth aspect of the present invention, in the counter tube according to the first aspect, the gas in the counter tube can be detected using normal air or an inert gas.

The invention according to claim 5 is the counter tube according to claim 1, in which the caliber is covered with a thin film of dielectric (plastic [polyethylene, etc.), and the ionization state of the substance is examined, so that the inside of food, the body, etc. It is also possible to measure the location where the radiation does not reach from the radiation source incorporated in the material, and to understand the abnormal ionization situation occurring in the substance.

According to a sixth aspect of the present invention, in the counter tube according to the first aspect, the conductive electromagnetic shield (mesh, foil) is applied to the aperture for detecting radiation, thereby removing ions existing outside the counter tube. It is also possible to detect only radiation such as α rays, β rays, γ rays, and X rays that jump into the chamber.

The invention according to claim 7 changes in the correction device according to claim 1 due to processing of a regular minute change seen due to a low voltage when amplification is performed, characteristics of a semiconductor, and the like. It is possible to measure the radiation energy value more accurately by attaching a correction device that adjusts the temperature to an appropriate value so that the obtained value can be corrected to a more accurate value. To do.

According to an eighth aspect of the present invention, in the analysis display device according to the first aspect, by adding one by one for each voltage value that changes as an output value according to time, the distribution of energy values respectively obtained by the particles is obtained. It is possible to determine the type of radiation and the radioactive substance.

According to the ninth aspect of the present invention, in the analysis display method, when the correction device and the analysis display device according to the first aspect are not used, the analysis can be performed using a personal computer, and a low voltage is used for data input. Therefore, whether to use an AD converter that inputs voice directly to a personal computer or to read data from an oscilloscope into a personal computer, removes periodic minute changes in voltage based on that data, and displays an energy distribution diagram. It is possible to analyze and specify a substance from a specific pattern of energy.

The invention according to claim 10 is the detection device according to claim 1, wherein the ionization state of the cell is examined when radiotherapy is performed for medical use, that is, the burn, inflammation, tumor in the body in the ionization state Can be detected at a lower dose, and can be more active in inflammation, cancer cells, etc. by touching the counter very close or touching the body surface. The ionized part of the cell can be dielectricized, the ionized state of the part can be removed, the function of the cell can be calmed down, and the proliferation can be suppressed.

According to invention of Claim 1, it is this detection apparatus for measuring a radiation and ion, The said detection apparatus is an electromagnetic shield, a counter, an amplifier, a correction | amendment apparatus, an analysis display apparatus, and the said auxiliary | assistant The electromagnetic shield can be covered with a net-like or foil-like electromagnetic shield to specify the type of static electricity and radiation from the surrounding area and the contact portion of the incident window. In order to prevent static electricity, it is covered with an insulator (paint, paper, rubber, etc.), and the counter tube is similar to the structure of a normal GM tube or proportional counter tube. It is possible to increase the dielectric property by placing it on the tube, and the dielectric thin film is different from the internal gas in operating voltage, and the dielectric thin film is a thin film made of a dielectric material (plastic [polyethylene], etc.) for which the radiation enters. Dielectric detection is performed on dielectrics from charged substances that are covered by the ionization in the outside, and the atmosphere and substances that have been ionized by passing through the electric field region where a low voltage is applied inside the counter tube. In this case, the internal gas uses normal air or an inert gas, the operating voltage uses a low voltage in a recombination region, and the amplifier In order to obtain a more accurate energy value in an auxiliary manner, the correction device can also add an effect of correcting the temperature and the like. Is obtained by measuring the voltage, and is measured using a voltmeter or an instrument such as an oscilloscope or PC, and by analyzing the result, Intensity of rays, and can provide a device that can perform a specific line type and material.

According to the second aspect of the present invention, in the counter tube according to the first aspect, the low voltage region of the recombination region that is not normally used in the Geiger-Muller counter tube and the proportional counter tube is used. An apparatus that can be used can be provided.

According to the invention of claim 3, in the counter tube of claim 1,
By applying the electricity inside the counter tube in the opposite direction to the cathode anode as compared with a normal counter tube, it is possible to provide a device that can further increase the dielectric property and measure.

According to the invention described in claim 4, in the counter tube according to claim 1, it is possible to provide a device capable of detecting the gas in the counter tube using normal air or an inert gas.

According to the invention described in claim 5, in the counter tube according to claim 1, the diameter of the substance is covered with a thin film of dielectric (plastic [polyethylene, etc.), and the ionization state of the substance is examined. For example, it is possible to measure an area where radiation does not reach from a radiation source incorporated therein, and to provide an apparatus that can understand an abnormal ionization state occurring in a substance.

According to the invention described in claim 6, in the counter tube according to claim 1, by applying a conductive electromagnetic shield (net, foil) to the aperture for detecting radiation, ions existing outside the counter tube are removed. It is possible to provide an apparatus capable of detecting only radiation such as α-rays, β-rays, γ-rays and X-rays jumping into the detector.

According to the seventh aspect of the present invention, in the correction device according to the first aspect, due to the processing of the regular minute change seen because of the low voltage when amplification is performed, the characteristics of the semiconductor, etc. A device that enables more accurate measurement of the radiation energy value by attaching a correction device that adjusts the value to an appropriate value depending on the temperature so that the value obtained by changing can be corrected to a more accurate value. Can be provided.

According to the invention described in claim 8, in the analysis display device according to claim 1, by adding one by one for each voltage value that changes as an output value with time, the energy value obtained by each particle An apparatus can be provided that can determine the distribution and thereby identify the type of radiation and the radioactive material.

According to the invention described in claim 9, in the analysis display method, when the correction device and the analysis display device according to claim 1 are not used, the analysis can be performed using a personal computer, Since it is a low voltage, use an AD converter that inputs voice directly to the personal computer or read data from the oscilloscope into the personal computer. It is possible to provide a method capable of creating a distribution map and analyzing and identifying a substance from a specific pattern of energy.

According to the invention described in claim 10, in the detection device, when the radiotherapy is performed for medical use, the ionization state of the cell is examined, that is, detection of a burn, inflammation, tumor, etc. in the body in the ionization state. That allows treatment at lower doses,
In addition, by touching the counter tube very close or touching the body surface, the ionized part of cells that are actively active due to inflammation, cancer cells, etc. can be dielectricized, and the ionized state of that part can be removed, It can calm down the function of cells and suppress proliferation.

It is the model block diagram which showed the dielectric counter detector of this invention. It is a dielectric counter detector schematic diagram. It is a schematic diagram of an inverted dielectric counter detector. It is a schematic diagram of a proportional counter. It is a Geiger-Muller counter tube schematic diagram. It is a graph which shows an applied voltage and the number of collection | recovery ions. It is a graph showing the semiconductor characteristic of temperature and voltage. It is a graph showing the value of a voltmeter and time transition which measured the substance which continues a large amount of ionization always with a dielectric counter. It is a graph showing the value and time transition of the voltmeter which measured the small amount of ionization state which the ionized material has accumulated with the dielectric counter. It is a graph showing an inaccurate measurement with a dielectric substance nearby. It is a graph showing the case where the dielectric material has accumulated temporarily. It is a graph showing the voltage change when dielectric measurement is carried out with an oscilloscope. It is a graph showing the difference with the peripheral part of the value dielectric-measured with the oscilloscope. It is a graph showing the average voltage value within the wavelength range which has micro periodicity. It is a graph showing the voltage average value in the range of (DELTA) t. FIG. 16 is a graph shown in FIGS. It is a graph showing the absolute value of FIG. It is a collection ion energy distribution graph.

DESCRIPTION OF SYMBOLS 1 Counter tube part 2 Voltage amplifier part 3 Correction | amendment part 4 Analysis display part 5 Personal computer correction | amendment analysis part 6 Thermometer

Even if there is no material to be shielded, the α ray is 45 to 100 mm, the β ray is 1 to 15 m, and the γ ray is ∞.
Moreover, about what can shield radiation, about alpha rays need one sheet of paper, beta ray aluminum board 3mm, gamma ray concrete 50cm, or lead 10cm.

Therefore, the radioactive material taken into the body or organic matter can hardly be detected unless it is gamma rays.

However, when cells or the like are ionized by radiation, charges are accumulated on the surface of the body and the surface of the organic substance, and an electrostatic field is generated, so that the ionization state inside can be shown.

By measuring these electrostatic fields, the amount of radiation energy can be shown, and the influence state of radiation on cells can be understood.

Once you know the effects of radiation on cells, you can detect burns, inflammation, tumors, etc. inside the ionized body by examining the ionization state of the cells when you perform radiation therapy for medical purposes. This allows treatment at lower doses.

This is also detected because pain and ionization occur when cells proliferate.

In addition, by touching the counter tube very close to the body surface, the ionized part of the cell that is actively active due to inflammation, cancer cells, etc. can be dielectricized, and the ionized state of that part can be removed. Can calm down and suppress proliferation.

This is because the cells become ionized when cell division occurs. By ionizing, cell division is more actively performed. To suppress this, the ionization is allowed to escape to make the cell division difficult.

By detecting charges accumulated around the surface using dielectric, the total amount of energy emitted can be determined.

As a measurement situation, since electric charges accumulate due to radiation, the voltage value increases momentarily when measured by a detector as shown in FIG. 8, but the value stabilizes after a while.

However, if there is a dielectric material around the outside, as shown in FIG. 10, the charge is conversely induced, and the voltage value may be low or zero.

In that case, the dielectric material in the surrounding area is removed, and it waits until the voltage value in the counter returns to its original state. If it is not detected again, the exact amount of radiation energy cannot be determined.

At this time, when the dielectric material cannot be removed, only the radiation that enters the counter tube is covered by covering the entrance of the dielectric counter tube 1 with an electromagnetic shield such as a mesh or metal foil as shown in FIG. Can also be detected.

In order to know the value of an object that is easily dielectric or an object that is always charged with an electrostatic field, the background may be measured in advance, and the difference obtained by subtracting the background may be considered as the radiation energy value.

The dielectric counter tube 1 is conductive so that it does not affect the detector even if it is touched with an electrostatically charged hand, etc., by covering the surroundings with an insulator except the entrance, and the amplifier 2 does not interfere with it. It shall be further wrapped with

The amplifier 2 uses a differential amplifier to accurately amplify a weak signal.

Also, as the counter tube portion and the thin film dielectric material, a Japanese tea tea can with a polyethylene inner lid can be used.

Assuming that the counter tube 1 has the radius r from the central axis, the radius a of the line, and the radius b of the cylinder from FIG. 2, the electric field E (r) is given as follows.

Although the voltage may be increased to prevent ion recombination, there are two reasons for the low voltage.

First, in the low voltage region of these recombination regions, the voltage can be expressed in direct proportion to the radiation energy value and the origin, so if the voltage change simply becomes N times, the radiation dose also becomes N times. I can think that it became.

Second, when used in the correction analysis display device 5, there is an oscilloscope such as a PC free software even if there is no hardware oscilloscope. Since it is 1 kHz, this can be used.

However, the upper limit of the input voltage must be kept below 7V so that the sound source board of the personal computer is not damaged.

Here, if V = 9 [V], a = 0.3mm, b = 30mm in the recombination region, which is a low voltage, E (r) = 9 / (2.4771 × r) = 3.633 / r. It can be measured.

If not directly connected to a personal computer, dielectric detection can be performed not only in the ion recombination region in the vicinity of 100 V but also in the proportional counter region, etc., from the graph of FIG. 6 showing the applied voltage and the number of collected ions.

The amplifying apparatus 2 uses a differential amplifier usually used in medical care to amplify and detect a voltage in order to capture a weak voltage change stably and accurately.

FIG. 14 shows a regular minute change process that is seen because the voltage is low when amplification is performed in the correction apparatus 3 by integrating or adding all values in one period to remove the periodic change.

Alternatively, it is possible to perform a Fourier transform, remove a specific frequency value, perform an inverse Fourier transform, and remove a regular minute change portion. Further, FIG. 15 shows the average of the minute surroundings δ without performing Fourier transform, and the ionization value can be easily obtained by subtracting from the original data.

The most important correction is the temperature correction of the semiconductor, so it changes due to the influence of temperature etc. so that the value obtained by changing according to the characteristics of the semiconductor can be corrected to a more accurate value By attaching a correction device for making the value to be an appropriate value, it becomes possible to measure the radiation energy value more accurately.

When the temperature characteristic of the amplifier semiconductor is obtained in combination with the thermometer 6, the electrical resistance increases as the temperature decreases, and the electrical resistance decreases as the temperature increases. Both can be measured and calculated to obtain an accurate ionization energy value.

From the experimental value, FIG. 7 (a), the equation indicating the characteristics of an amplifier using a semiconductor is usually T = T ₀ + αlog (βV). However, as a result of the experiment, an error in a low temperature portion increases. , √V was applied, and a value closer to the experimental value could be obtained as shown in FIG.

It is assumed that temperature T, measurement voltage V, and arbitrary constants T ₀ , α, and β.

The correction by temperature can be obtained by Equation 2, and the constant parts T ₀ , α, and β change depending on the size of the counter and the properties of the semiconductor.

When measurement is performed via the correction device 3, the measurement voltage is not changed due to temperature in combination with a linear resistor, thermistor, platinum resistance thermometer, etc. having the reverse functions.

If this is corrected using, for example, a thermistor, the resistance R, temperature T, and B constant B are as follows from the characteristics of the thermistor.

T _S : R _S (Ω) thermistor temperature R _S : T _S (° C) resistance value T: resistance R (Ω) desired temperature R: temperature T (° C.) desired resistance value

The temperature resistance characteristic of the thermistor can be described in this way according to the Steinhart equation approximately.

In the case of linear resistors, platinum resistance thermometers, etc., another calculation formula must be used, but if an IC temperature sensor is used, a resistance value suitable for the characteristics of Formula 2 can be set. .

As the analysis display device 4 or the correction analysis display device 5, the energy value by radiation is obtained by measuring a voltage, and a device such as a voltmeter, an oscilloscope, a PC, or a dedicated circuit is used.

Since ions are measured by the dielectric counter 1, the ion flow rate must also be taken into account.

Ion flow rate is proportional to electric field, inversely proportional to pressure, approximately 1 (atm cm ² / sV)
The proportionality constant α is called the recombination coefficient, and varies depending on the type of gas, temperature, and pressure.

Flow (drift) is a movement of charged particles in the electric field direction while repeating low-energy collisions with gas molecules.

The flow velocity v is proportional to the electric field strength E at a low electric field, and the mobility μ is a proportionality constant, and is described as follows.

Electronic case

For ion

The flow rate of ions is about 3 orders of magnitude smaller than the flow rate of electrons.

Therefore, when a voltmeter is directly connected and measurement is simple, it is easier to read the ionization value if the dielectric counter 1 is moved at a certain speed and detected.

Therefore, when measuring the inside of the body, it is better to measure in a circle.

Obviously, when there are many radiation sources, if the measurement is performed without moving the dielectric counter 1, the change in the voltage value becomes a graph as shown in FIG.

Further, when a small amount exists, as shown in FIG. 9, the ions temporarily accumulated in the portion are measured, but after a while, the original state is restored.

However, if the dielectric counter tube 1 is separated from the measurement location and closes after several seconds, it can be said that there is a small amount that generates ions.

If there is another dielectric near the measurement, the voltage value decreases as shown in FIG. 10, and accurate measurement cannot be performed.

Therefore, in such a case, it is necessary to remove the dielectric and wait for the voltage to return to the original voltage as shown in FIG.

Alternatively, it can be measured as a normal counter tube by providing an electromagnetic shield at the measurement port of the dielectric counter tube 1 or by reversing the polarity state of the electric field of the counter tube as shown in FIG.

By analyzing the measurement results, the voltmeter can identify the energy intensity per unit time of radiation, an energy distribution map using an oscilloscope and a PC, and specify line types and substances.

Voltage change data is input from the oscilloscope to the correction analysis display device 5.

For example, a distribution map is created from the graph 12 of voltage change over time.

However, if there is only simple correction, or if there is no correction device, or if it has not been corrected at the previous stage, it is corrected here according to regular minute changes and changes in atmospheric conditions that are seen when detecting amplification by semiconductors. Apply.

As a correction method when the original data is graphed in FIG. 12,
(1) Adjacent maximum value Vmax (Δt) and minimum value Vmin (Δt) within a certain range Δt,

This is effective when the wavelength is largely divided, and it is easy to specify the pulse.
When Δt = 1, it is the same as | V (t) −V (t + 1) |, and when Δt = 2, processing is as shown in FIG.
Further, when processing is performed with the threshold value of (a) as 0.01, the graph of FIG. 13B is obtained.

(2) Take an average value in the range of the wavelength λ.

However, since the measuring instrument is discrete in time,

Here, if the calculation is performed with λ = 414 and the graph is obtained, the graph shown in FIG. 14 is obtained. Since the values detected within the wavelength are added, it is difficult to specify the line type, but it is easy to obtain the energy fluctuation of the radiation.

(3) V (t) [measured value] -φ (t), subtracting the value according to the period,
Accurate values can be obtained, and radiation types can be specified. In a continuous system

However, since the measuring instrument is discrete in time,

Here, when the original data V (t) is processed assuming that δ = 5 “1 of δ corresponds to 0.00004 seconds”, a graph of micro periodic φ (t) by amplification by a semiconductor as shown in FIG. 15 is obtained. It is done.

From this, when the measured value V (t) is deleted, V (t) −φ (t) is obtained, and a graph in which the pulse and noise in FIG. 16A are mixed is obtained.

When the noise portion was deleted with the threshold value set to 0.0065, only the pulse of FIG. 16B was displayed.

In addition, from the graph of FIG. 16B, from the voltage difference 0, it can be seen at points of 60, 350, 720 [× 0.00004 s] that almost span the + component and the − component. It is thought that each was measured without happening.

The other part of only + or-only has ion recombination, and only one charge is detected.

For example, in order to obtain a more accurate measured value than this, the number of values that react up and down: a, the number that reacts in the + direction: b, the number that reacts in the-direction: c, Number disappeared by coupling: d, voltage average value V + in the + direction, voltage average value V- in the − direction, V−, ion recombination correction coefficient k _S , where k _S is a specific value determined by the applied voltage and the counter It is a constant.

In this graph, since a = 3, b = 3, and c = 3, the value of d is 3/6 = 6 / d from a / (b + c) = (b + c) / d. d = 12, and the correction value as the count was actually measured as (a + b + c + d) / (a + b + c) = (3 + 3 + 3 + 12) / 9) = 21/9 Multiply the value and calculate as 9 × 21/9 = 21.

If the absolute value of FIG. 16A is taken to be | V (t) −φ (t) |, FIG. 17A can be obtained.

When the threshold value is set to 0.0065 and a noise portion equal to or lower than the threshold value is deleted, the pulse height of the voltage with respect to time as shown in the graph of FIG. 17B is obtained.

The pulse height of the voltage becomes the collected ion energy, and when the value as shown in FIG. 16 is measured for a longer time, and the voltage difference value is divided and counted for each Δ (V (t) −φ (t)), it is as shown in FIG. The radiation particles can be identified by the wave height.

In addition, by processing those values every unit time, it is possible to know the transition of energy with time.

Claims

The detection device for measuring radiation and ions, wherein the detection device is an electromagnetic shield, a counter tube, an amplifier, a correction device, and an analysis display device. It can be covered with a net-like or foil-like electromagnetic shield in order to specify the type of static electricity and radiation, and an insulator is used to prevent static electricity so that the counter tube may be touched by the hand. (The paint, paper, rubber, etc.), the counter tube is similar to the structure of a normal GM tube or a proportional counter tube. The dielectric thin film and the internal gas are used in different voltages, and the dielectric thin film has a radiation entrance window covered with a thin film of dielectric material (plastic [polyethylene], etc.). The difference between the dielectric from the charged substance in the ionized state and the potential difference obtained by dielectric detection of the atmosphere and the substance that the radiation passed through the electric field region where a low voltage was applied inside the counter tube and was ionized. It can be amplified and shown as a voltage value. At this time, the internal gas uses normal air or an inert gas, the operating voltage uses a low voltage in the recombination region, and the amplifier amplifies the voltage change. The correction device can supplement the influence of temperature and the like in order to obtain a more accurate energy value, and the analysis display device can measure the energy value of radiation by measuring the voltage. Obtain and measure the radiation intensity, line type, and object by measuring using a voltmeter, oscilloscope, or PC, and analyzing the results. It is characterized in that it is possible to a performing specific.
The counter may be used as a detector using a Geiger-Muller counter and a low voltage region of a recombination region that is not used in a proportional counter. The detection device according to 1.
The counter is
2. The detection device according to claim 1, wherein the electrical conductivity inside the counter tube can be measured by increasing the dielectric property by applying the cathode anode in the reverse direction as compared with a normal counter tube.
The detection device according to claim 1, wherein the counter tube can detect the gas in the counter tube using normal air or an inert gas.
The counter is covered with a thin film of dielectric material (plastic [polyethylene], etc.), and the ionization status of the substance is examined, so that the radiation does not reach from the radiation source incorporated in food or the body. The detection device according to claim 1, wherein measurement is also possible and an abnormal ionization state occurring in a substance can be understood.
The counter tube is formed by applying a conductive electromagnetic shield (net, foil) to the aperture for detecting radiation, thereby removing ions existing outside the counter tube and jumping into the detector. The detection apparatus according to claim 1, wherein only the radiation such as X-rays and X-rays can be detected.
The correction device is a process of regular minute changes seen because of the low voltage when amplification is performed,
A more accurate measurement of radiation energy value can be achieved by installing a corrector that adjusts the value appropriately according to the temperature so that the value obtained by changing the characteristics of the semiconductor can be corrected to a more accurate value. The correction device according to claim 1, wherein the correction device becomes possible.
The analysis display device can determine the distribution of energy values obtained by the particles by adding one by one for each voltage value that changes as an output value with time. The analysis display device according to claim 1, wherein identification is possible.
When the correction device according to claim 1 and the analysis display device are not used, analysis can be performed using a personal computer, and voice input provided directly to the personal computer is used because data is input at a low voltage. Whether to use an AD converter or read data from an oscilloscope to a personal computer, remove periodic minute changes in voltage based on the data, create an energy distribution diagram, and analyze substances from the specific pattern of energy An analysis display method characterized in that it can be specified.
The detection device can examine the ionization state of cells when performing radiotherapy for medical use, that is, can detect burns, inflammation, tumors, etc. in the body in an ionization state, thereby reducing the ionization state. Treatment with a dose is possible, and by touching the counter very close to or on the body surface, the ionized part of cells that are actively active due to inflammation, cancer cells, etc. is dielectricized, The detection device according to claim 1, wherein the ionization state of the part can be removed, the function of the cells can be calmed down, and proliferation can be suppressed.