KR102562007B1 - Compact radiation detection system for detecting unknown radioactive substance and method thereof - Google Patents

Abstract

The present invention is a gamma-ray measuring probe (hereinafter collectively referred to as a probe), which is a deployment-type radiation measuring device, for distribution information of unapproved/unreported radioactive materials located in unspecified forms and locations or radioactive materials in high-radiation areas. It relates to a deployable compact radiation detection system and method for detecting an unknown radioactive material capable of effectively acquiring radiation information (eg, radiation dose, radiation type, radiation location, etc.) using a plurality of probes Aerial UAV equipped with a tray equipped with an agent for establishing a communication network; a plurality of probes interconnected with a plurality of agents through a wireless network and controlled by the plurality of agents to transmit radiation values measured at points where each probe is located to adjacent agents as data; the plurality of agents interconnected with the plurality of probes through the wireless network and controlling the plurality of probes to receive radiation values measured at points where each probe is located as data; a controller interconnected with the plurality of agents, controlling the plurality of agents and receiving and collecting data from the plurality of agents; And a server interconnected with the controller, receiving and analyzing data collected from the controller, calculating a radiation dose in a specific area based on the analyzed data, and locating a specific radioactive material, wherein the plurality of The probe measures gamma radiation information and GPS location information and transmits them to the agent, and when the server analyzes the received collected data, it distinguishes gamma rays and neutrons using characteristics of radiation, and the energy of the gamma rays The type of the corresponding radiation source is determined through the spectrum, and the server uses a mathematical analysis algorithm, a geometric analysis algorithm, and an iterative estimation analysis algorithm to determine the location, number, and type of nuclear materials using the data measured from each probe. are mixed and applied, and the position of the radiation source with the highest probability is detected by comparing simulation values of a plurality of cases considering the expected positions of radiation sources in the entire target area where the probe is placed and data values collected through the probe.

Description

Deployable compact radiation detection system and method for detecting unknown radioactive materials

The present invention relates to a deployable compact radiation detection system and method for detecting unknown radioactive materials, and more particularly, to detect unlicensed/undeclared radioactive materials located in unspecified forms and locations or radioactive materials in high-radiation areas. Effectively obtain radiation information (e.g., radiation dose, radiation type, radiation location, etc.) It relates to a deployable compact radiation detection system and method for detecting unknown radioactive substances that can be detected.

In general, the spectrometric determination of the exposure rate, which calculates the dose rate from the energy spectrum measured by a detector, has been introduced and widely used in environmental radiation monitoring because of the advantage of being able to directly identify and evaluate the contribution of artificial radionuclides. It is becoming.

The dose rate of individual radionuclides is directly related to the radioactivity of the radionuclide when there are many artificial radionuclides due to measurement of radioactive materials or radiation accidents. Therefore, directly calculating the dose rate of individual radionuclides from the measured energy spectrum can provide very useful information not only for routine radiation monitoring but also for initial response to radiation accidents.

Normally, in order to measure the radioactivity of a facility or site, workers wear protective clothing and measure it using radioactivity measurement equipment, but the risk of exposure when radioactivity is measured for a long time in a facility or site where the degree of radioactive contamination is unknown this comes into existence

Therefore, in order to respond to nuclear accidents and monitor environmental radiation around nuclear facilities, radiation detection devices are manufactured in a mobile type and attached to various means of transportation such as backpacks and vehicles to detect radiation. However, in the case of a mobile radiation detection device that measures radiation by being attached to a vehicle or backpack, the radiation is measured at one location every 2 to 3 seconds and then moved to another location, so the measurement time is short and individual radionuclides It is difficult to directly obtain the dose rate of

In particular, recently, radiation dose is measured in the air using an unmanned aerial vehicle or an unmanned aerial vehicle (UAV), which is a kind of drone. However, in this method, if a sufficiently large radiation source does not exist in the target area to be measured, the measurement accuracy is greatly affected by the airborne UAV's flight time and the weight of the instrument to measure the radiation source.

In the case of using a sufficiently large radiation meter, the increased weight reduces the flight time and requires rapid movement through the target area to obtain the radiation dose. As a result, it is possible that it is difficult to obtain sufficiently reliable data because it affects the time variable in radiation measurement. will be high

In addition, there is a problem in that the measurement through the aerial drone is still insufficient to obtain accurate radiation-related information because the measurement distance from the radiation source is long.

Therefore, an object of the present invention has been made to solve the above problems, and is spread through a probe deployment device, which is a drone, in an area where there is no information on a radiation source where information on a kind of radiation risk is unknown. The location of the radiation source and radiation information are identified through the PVT scintillator of the probe seated on the ground, and the type of gamma ray is classified through the Csi (TI) scintillation detector of the probe and transmitted to each mesh router in the corresponding area through the network. An object of the present invention is to provide a deployable compact radiation detection system and method for detecting an unknown radioactive material using a partially decentralized wireless network in which each mesh router transmits and collects transmitted information to a central mesh router, which is a controller.

A deployable compact radiation detection system for detecting unknown radioactive substances according to the present invention includes a tray equipped with a plurality of probes and an aerial drone equipped with an agent for establishing a communication network; a plurality of probes interconnected with a plurality of agents through a wireless network and controlled by the plurality of agents to transmit radiation values measured at points where each probe is located to adjacent agents as data; the plurality of agents interconnected with the plurality of probes through the wireless network and controlling the plurality of probes to receive radiation values measured at points where each probe is located as data; a controller interconnected with the plurality of agents, controlling the plurality of agents and receiving and collecting data from the plurality of agents; And a server interconnected with the controller, receiving and analyzing data collected from the controller, calculating a radiation dose in a specific area based on the analyzed data, and locating a specific radioactive material, wherein the plurality of The probe measures gamma radiation information and GPS location information and transmits them to the agent, and when the server analyzes the received collected data, it distinguishes gamma rays and neutrons using characteristics of radiation, and the energy of the gamma rays The type of the corresponding radiation source is determined through the spectrum, and the server uses a mathematical analysis algorithm, a geometric analysis algorithm, and an iterative estimation analysis algorithm to determine the location, number, and type of nuclear materials using the data measured from each probe. , and detecting the position of the radiation source with the highest probability by comparing simulation values of a plurality of cases considering the expected positions of radiation sources in the entire target area where the probes are placed and data values collected through the probes. to be characterized

In addition, the deployment type small radiation detection method for detecting unknown radioactive materials according to the present invention includes a public drone, a plurality of probes, a plurality of agents, a controller, and a server. A deployment-type small-size radiation detection method for detecting unknown radioactive substances by a detection system, comprising: establishing a basic wireless communication network in a simple form by introducing the aerial drone to a target area where a specific situation occurs; scanning a wide range of the target region with the plurality of probes; expanding the basic wireless communication network by further supporting the aerial drone; and scanning a narrow range of the target area with the probe, wherein in the step of constructing a basic wireless communication network in a simple form by inserting equipment into the target area where the specific situation occurs, each of the probes is located The radiation value measured at the point is transmitted as data to the agent, the agent transmits the received data to the controller to collect the data, and the collected data is transmitted to the server for analysis, and the probe placement interval Due to this wide range, a wide range of the target area is scanned, and an approximate radiation dose of the target area and a location of a specific nuclear material are identified based on the scanned information.

As described above, the deployable compact radiation detection system and method for detecting unknown radioactive materials according to the present invention have an advantage in that the distribution of radioactive materials in a target area can be grasped within a short time when a specific situation occurs.

In addition, it is possible to acquire information capable of quickly determining whether people can enter the target area when a specific situation occurs, and there is an advantage in that it is possible to grasp the distribution of radioactive materials in an area where people cannot enter.

In addition, there is an advantage in that various information such as temperature, humidity, noise, air (fine dust), and light amount can be provided according to the function of the deployed probe as well as the distribution of radioactive materials in the target area.

1 is a schematic configuration block diagram of a deployable compact radiation detection system for detecting unknown radioactive materials according to the present invention.
Figure 2 is a perspective view of the probe of Figure 1;
3 is a block diagram of the probe of FIG. 2;
4A is a perspective view of a tray structure to which the probe of FIG. 1 is to be mounted;
4b is a perspective view of a tray structure in which the probe of FIG. 1 is coupled to the tray structure;
5 is a diagram illustrating a form of a decentralized wireless network for the operation of a metrology probe according to the present invention;
6a and 6b show a probe deployment algorithm according to the present invention;
7a to 7c are diagrams of an analysis algorithm applied to determine the location, number, and type of specific nuclear material.
8 is a flow chart of a deployable miniature radiation detection method for detecting unknown radioactive substances according to the present invention.

Hereinafter, a deployable compact radiation detection system and method for detecting an unknown radioactive material according to the present invention will be described in more detail through detailed descriptions of embodiments with reference to the drawings. In describing the present invention, if it is determined that a detailed description of a related known technology or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, the terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a client, operator, or user. Therefore, definitions should be made based on the contents throughout this specification.

Like reference numbers refer to like elements throughout the drawings.

1 is a schematic configuration block diagram of a deployable compact radiation detection system for detecting unknown radioactive substances according to the present invention, FIG. 2 is a perspective view of the probe of FIG. 1, and FIG. 3 is a configuration block diagram of the probe of FIG. 4A is a perspective view of a tray structure to which the probe of FIG. 1 is to be mounted, FIG. 4B is a perspective view of a tray structure in which the probe of FIG. 1 is coupled to the tray structure, and FIG. 5 is decentralization for operation of the probe according to the present invention. 6A and 6B are diagrams of a deployment algorithm of a probe according to the present invention, and FIGS. 7A to 7C are diagrams of an analysis algorithm applied to determine the location, number, and type of specific nuclear materials, 8 is a flow chart of a deployable miniature radiation detection method for detecting an unknown radioactive material according to the present invention.

As shown in FIGS. 1 to 4B, the deployable compact radiation detection system for detecting unknown radioactive materials according to the present invention includes an airborne drone 110, a plurality of probes 120, a plurality of agents 130, A controller 140 and a server 150 are included.

Here, the aerial drone 110 is loaded with a tray 200 on which a plurality of probes 120 are to be mounted and an agent 130 for establishing a communication network.

In addition, the plurality of probes 120 are designed so that radiation measurement values cannot be visually recognized, and the plurality of probes 120 are mounted on the aerial drone 110 while being mounted on the tray 200 , When a specific situation occurs, it is distributed (deployed) by parachute to a specific area, interconnected with a plurality of agents 130 through a wireless network, and is controlled by the agent 130 at a point where each probe 120 is located. The measured radiation value is transmitted to the adjacent agent 130 as data. At this time, the plurality of probes 120 mainly measure gamma radiation information and GPS location information and transmit them to the agent 130, and are designed to respond to external environments such as water and dust and impacts caused by dispersion in the air.

In addition, the plurality of agents 130, as a kind of router, are interconnected with the plurality of probes 120 through a wireless network, and control the plurality of probes 102 at a point where each probe 120 is located. The measured radiation value is received as data. At this time, the plurality of probes 120 and the plurality of agents 130 may be connected in a plurality to a single number.

In addition, the controller 140 is interconnected with the plurality of agents 130, controls the plurality of agents 130, and receives and collects data from the plurality of agents 130. At this time, the plurality of agents 130 and the controller 140 may be connected in a plurality to singular manner, and the controller 140 may serve as a terminal.

In addition, the server 150 is interconnected with the controller 140, and by receiving and analyzing data collected from the controller 140, it is possible to calculate the radiation dose of a specific area based on this and to determine the location of a specific radioactive material. At this time, when analyzing the received collected data, the server 150 distinguishes gamma rays and neutrons using characteristics of radiation, and can more accurately determine the type of the corresponding radiation source through the energy spectrum of the gamma rays.

Meanwhile, the aerial drone 110 may relay instructions from the controller 140 to a plurality of agents 130 based on instructions from the controller 140, and is mounted while being mounted on the tray 200. A plurality of probes 120 are spread in the air from the tray 200 over a specific area to the outside atmosphere. At this time, each probe 120 may be protected by a parachute during aerial dispersion.

In addition, as shown in FIG. 2, each probe 120 is designed so that radiation measurement values cannot be visually recognized, and is designed to respond to impacts caused by external environments such as water and dust and dispersion in the air. there is. Here, the probe 120 is shown in the shape of a rectangular parallelepiped having a width of 65 mm, a length of 62 mm, and a height of 217 mm, but its size and shape are not limited thereto and may have various shapes and sizes.

In addition, each probe 120 uses a polyvinyltoluene (PVT) scintillator as a measurement material to determine the location of the radiation source and radiation information in consideration of detection efficiency including geometric efficiency, and uses a CsI (Tl) scintillation detector. Classify the types of gamma rays using

On the other hand, each probe 120, as shown in FIG. 3, wifi 121, GPS 123, MCA (multichannel analyzer, 125), PVT scintillator 127, CsI (Tl) scintillation detector 128 ), and the MCU 129.

Here, the wifi 121 is controlled by the MCU 129 and is used to communicate with the agent 130 close to the probe 120.

In addition, the GPS 123 is controlled by the MCU 129 and serves to measure location information on the GPS and deliver it to the agent 130 close to the probe 120 through the wifi 121.

In addition, the PVT scintillator 127 is a measurement material considering measurement efficiency including geometric efficiency, and transmits information on the position of the radiation source and radiation measured through the PVT scintillator 127 to the MCU 129.

In addition, the CsI(Tl) scintillation detector 128 is used to classify the type of gamma rays, and an output of the CsI(Tl) scintillation detector 128 is provided in the form of a spectrum.

In addition, the MCA 125 is connected to the CsI(Tl) scintillation detector 128, digitizes the peak value of the analog signal pulse in the form of a spectrum, which is an output of the CsI(Tl) scintillation detector 128, and provides it to the MCU 129.

In addition, the MCU 129 is connected to the wifi 121, the GPS 123, the MCA 125, and the PVT scintillator 127 to control them.

Now, referring to FIGS. 4A and 4B , the probe 120 and the tray 200 on which the probe 120 is mounted will be described in more detail.

As shown in FIGS. 4A and 4B, a plurality of probes 120 are mounted one by one on a tray 200 having, for example, 3 x 3 probe mounting holes, and are mounted on the aerial drone 110 to determine specific transported to the area where the situation occurred. Here, the tray 200 is shown as a tray with 3 x 3 probe mounting holes, and is shown as a rectangular parallelepiped with a width of 233 mm, a length of 228 mm and a height of 111 mm, but is not limited thereto, and various shapes and various numbers of mountings are shown. A hole may be provided. Each probe 120 mounted on the tray is separated from the tray 200 and dispersed in the air when the aerial drone 110 reaches an area where a specific situation occurs.

Hereinafter, with reference to FIG. 5, a form of a decentralized wireless network for the operation of a measurement probe according to the present invention will be described.

As shown in FIG. 5, the decentralized wireless network for the operation of the measurement probe according to the present invention is used when assuming an area where wireless Internet is not available and radiation information is unknown because there is no wireless network. As a partially decentralized wireless network, a plurality of agents 130 having authority each serve as a central node and communicate with other nodes to communicate between probes 120 or between probes 120 and servers 150.

At this time, the difference from the existing decentralized wireless network structure is that the controller 140 exists. The controller 140 plays the same role as the plurality of agents 130 in terms of communication, but plays a key role in controlling the entire network by configuring and optimizing the network, thereby preventing network formation in the absence of the controller 140. It also includes some security enhancements.

Now, with reference to FIGS. 6A and 6B, a probe deployment algorithm according to the present invention will be reviewed.

The deployment of the probe 120 can be described by dividing it into a deployment method and a deployment position.

In the deployment position of the probe 120, various types of deployment algorithms exist according to the type and intensity of expected radioactive materials in order to identify radioactive materials in a wide area using a limited number of probes 1200.

In the present invention, there are two proposed examples, each referred to as a square method and a trigonometric method, but is not limited thereto. The difference between the trigonometric method and the square method depends on which method is more efficient depending on the strength of the nuclear material or the type of the probe 120 (size and weight of the scintillating material) in a state where the probe 120 is arranged in a predictable shape. However, there is currently no set method for the development method.

In the probe deployment method, since the probe 120 is basically a device for evaluating the radiation dose in a place where highly radioactive materials are likely to exist, it is deployed using the unmanned aerial vehicle 110, but depending on the situation When it is difficult to operate the aerial drone or the efficiency is low, it can be deployed using a mobile vehicle or manually deployed using a backpack, which can be flexibly changed according to the situation at the site.

Hereinafter, with reference to FIGS. 7A to 7C, an analysis algorithm applied to determine the location, number, and type of specific nuclear material will be reviewed.

As shown in FIGS. 7A to 7C , the local radiation dose and the location of a specific nuclear material are determined using the data measured by the plurality of probes 120 .

At this time, in the case of measuring the local radiation dose, the remaining data is mapped on a map to estimate the radiation dose in the region, except for data that is specifically out of range among the measured data.

In addition, in the case of measuring specific nuclear material, the server 150 uses a mathematical analysis algorithm (Analytic, 7a), geometrical analysis algorithm (see FIG. 7b), iterative estimation analysis algorithm (see FIG. 7c), etc. can be applied, but each method has advantages and disadvantages, so these methods are used in combination. . In addition, the position of the radiation source with the highest probability is detected by comparing simulation values of a plurality of cases considering expected positions of radiation sources in the entire target area where the probes are disposed and data values collected through the probes. Incidentally, since radiation sources may exist in various locations in the field, it is assumed that radiation sources exist in all locations, and after predicting the value measured by the probe through simulation, the actual measured probe value and the predicted probe value It is a method of comparing and finding a probe value having the highest form of similarity and determining the location of the radiation source based on this.

Now, with reference to FIG. 8 , a deployable miniature radiation detection method for detecting an unknown radioactive material according to the present invention will be described.

As shown in FIG. 8, the deployable small radiation detection method for detecting unknown radioactive materials according to the present invention includes an airborne drone 110, a plurality of probes 120, a plurality of agents 130, and a controller 140. ), a deployable compact radiation detection method for detecting unknown radioactive materials by a deployable compact radiation detection system for detecting unknown radioactive materials including a server 150.

The deployable miniature radiation detection method for detecting unknown radioactive materials according to the present invention is based on a specific situation in which radiation is emitted from radioactive materials due to unreported nuclear activity.

First, in step S810, a basic wireless communication network in a simple form is established by introducing equipment to a target area where a specific situation occurs. Here, the probe 120 and the agent 130 are dispersed in the air from the aerial drone 110.

Then, in step S830, a wide area of the target area is scanned with the probe 120. Here, the radiation value measured at the point where each probe 120 is located is transmitted as data to the agent 130, and the agent 130 receiving the data transmits the received data to the controller 140 to collect the data. And, the collected data is transmitted to the server 150 and analyzed, but since the arrangement interval of the probe 120 is wide, a wide range of the target area can be scanned, and approximate radiation of the target area based on the scanned information. The quantity and location of specific nuclear material can be determined.

After that, in step S850, a plurality of aerial drones 110 are supported to expand the wireless communication network. Here, more probes 120 and agents 130 are airborne.

Then, in step S870, a narrow range of the target area is scanned with the probe 120. Here, the radiation value measured at the point where each probe 120 is located is transmitted as data to the agent 130, and the agent 130 receiving the data transmits the received data to the controller 140 to collect the data. The collected data is transmitted to the server 150 and analyzed, and since the spacing of the probes 120 dispersed in the air and seated on the ground is dense, a narrow range of the target area can be scanned. The data received in steps S830 and S870 is a specific nucleus by using a mixture of a mathematical analysis algorithm (Analytic, see FIG. 7A), a geometric analysis algorithm (Geometric, see FIG. 7B), and an iterative estimation analysis algorithm (See FIG. 7C). The strength and fine location of the material can be identified.

As described above, the deployable compact radiation detection system and method for detecting unknown radioactive materials according to the present invention can grasp the distribution of radioactive materials in a target area within a short time when a specific situation occurs. In addition, it is possible to acquire information that can quickly determine whether people can enter the target area when a specific situation occurs, and it is possible to grasp the distribution of radioactive materials in the area where people cannot enter. In addition, there is an advantage in that it can provide various information such as temperature, humidity, noise, air (fine dust), and light amount according to the function of the deployed probe as well as the distribution of radioactive materials in the target area.

As described above, the present invention has been described based on preferred embodiments, but these embodiments are intended to illustrate rather than limit the present invention. Various changes or alterations or adjustments to the examples will be possible. Therefore, the protection scope of the present invention should be construed as including all examples of changes, changes, or adjustments belonging to the gist of the technical idea of the present invention.

110: aerial drone 120: probe
121: wifi 123: GPS
125: MCA 127: PVT scintillator
128: Csl scintillation detector 129: MCU
130: agent 140: controller
150: server 200: tray

Claims (9)

An aerial drone equipped with a tray equipped with a plurality of probes and an agent for establishing a communication network;
a plurality of probes interconnected with a plurality of agents through a wireless network and controlled by the plurality of agents to transmit radiation values measured at points where each probe is located to adjacent agents as data;
the plurality of agents interconnected with the plurality of probes through the wireless network and controlling the plurality of probes to receive radiation values measured at points where each probe is located as data;
a controller interconnected with the plurality of agents, controlling the plurality of agents and receiving and collecting data from the plurality of agents; and
A server interconnected with the controller, receiving and analyzing data collected from the controller, calculating radiation dose in a specific area based on the analyzed data, and locating a specific radioactive material,
The plurality of probes measure and transmit gamma radiation information and GPS location information to the agent;
When the server analyzes the received collected data, the server distinguishes gamma rays and neutrons using characteristics of radiation, and determines the type of the corresponding radiation source through the energy spectrum of the gamma rays,
The server uses a combination of a mathematical analysis algorithm, a geometric analysis algorithm, and an iterative estimation analysis algorithm to determine the location, number, and type of nuclear material using the data measured from each of the probes.
For detecting an unknown radioactive material that detects the position of the radiation source with the highest probability by comparing the simulated values of a number of cases considering the expected location of the radiation source in the entire target area where the probe is placed and the data value collected through the probe Deployable compact radiation detection system.
The method of claim 1,
Each of the probes,
wifi used to communicate with the agent proximate to the probe;
GPS measuring location information on the GPS and transmitting it to an agent close to the probe through the wifi;
a polyvinyltoluene (PVT) scintillator that provides information on the location of the measured radiation source and radiation;
A CsI(Tl) scintillation detector used to classify types of gamma rays and providing output in the form of a spectrum;
a multichannel analyzer (MCA) that is connected to the CsI(Tl) scintillation detector and digitizes a peak value of an analog signal pulse in the form of a spectrum, which is an output of the CsI(Tl) scintillation detector, and transmits the digitized peak value to an MCU; and
A deployable compact radiation detection system for detecting unknown radioactive substances including an MCU connected to and controlling the wifi, GPS, MCA, and PVT scintillators.
The method of claim 1,
Each of the probes uses the PVT scintillator as a measurement material in consideration of detection efficiency including geometric efficiency, and is a deployable compact radiation detection system for detecting unknown radioactive substances that collects information on the position of the radiation source and radiation. .
The method of claim 1,
Each probe mounted on the tray is separated from the tray and dispersed in the air when the aerial drone reaches an area where a specific situation occurs.
delete A deployable compact radiation detection method for detecting unknown radioactive materials by a deployable compact radiation detection system for detecting unknown radioactive materials including an airborne drone, a plurality of probes, a plurality of agents, a controller, and a server,
Establishing a basic wireless communication network in a simple form by introducing the aerial drone to a target area where a specific situation occurs;
scanning a wide range of the target region with the plurality of probes;
expanding the basic wireless communication network by further supporting the aerial drone; and
scanning a narrow range of the target area with the probe;
In the step of establishing a basic wireless communication network in a simple form by putting equipment in the target area where the specific situation occurs,
The radiation value measured at the point where each probe is located is transmitted as data to the agent, the agent transmits the received data to the controller to collect the data, and the collected data is transmitted to the server and analyzed. , Since the placement interval of the probe is wide, a wide range of the target area is scanned, and based on the scanned information, the approximate radiation dose of the target area and the location of a specific nuclear material are identified. A deployable compact radiation detection method for
The method of claim 6,
In the step of establishing a basic wireless communication network in a simple form by introducing equipment to the target area where the specific situation occurs,
A deployable small-sized radiation detection method for detecting unknown radioactive substances in which the probe and the agent are dispersed in the air from the aerial drone.
The method of claim 6,
In the step of expanding the basic wireless communication network by further supporting the aerial drone,
A deployable miniature radiation detection method for detecting unknown radioactive substances in which more of the probes and agents are dispersed in the air.
The method of claim 6,
In the step of scanning a narrow range of the target area with the probe,
The radiation value measured at the point where each probe is located is transmitted as data to the agent, the agent transmits the received data to the controller to collect the data, and the collected data is transmitted to the server and analyzed. , Since the arrangement interval of the probes dispersed in the air and seated on the ground is dense, a narrow range of the target area can be scanned,
A mathematical analysis algorithm, a geometric analysis algorithm, and an iterative estimation analysis algorithm are mixed and applied to the narrow range of the scanned target area, so that the strength and detailed location of a specific nuclear material are identified,
For detecting an unknown radioactive material that detects the position of the radiation source with the highest probability by comparing the simulated values of a number of cases considering the expected location of the radiation source in the entire target area where the probe is placed and the data value collected through the probe A deployable compact radiation detection method.

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