JP2008298540A - Storage container and control system of radiation source - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radiation source control system capable of surely controlling location of a radiation source, and to provide a storage container of the radiation source. <P>SOLUTION: A radiation source control system controls the location of a radiation source 100 in a radiation control area 2. A storage container 10 is provided with a radiation detector 13 for detecting predetermined radiation source information with respect to the involved radiation source, a transmission/reception control device 14 for periodically reading the radiation source information detected by the radiation detector 13 to display the radiation source information, and IC tags individually provided with respect to the radiation source. At an entrance exit of the radiation source control area 2 and a storage room 1, check gates 20, 21 are placed to read discrimination information and the radiation source information. Furthermore, a host computer for receiving the discrimination information and the radiation source information through a network within an area is placed to determine the location of the radiation source 100 by the determining means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a management system for managing the location of a radiation source to be taken out when a radiation source sealed in a container is used, and a radiation source storage container.

  A radiation source is a substance containing a radioisotope that is used as a radiation source including electromagnetic waves or particle beams such as α rays, β rays, γ rays, neutron rays, heavy charged particle rays, and X rays. . As is well known, exposure to large amounts of this radiation has an adverse effect on the human body. Therefore, in nuclear power plants and research facilities that handle radiation sources, the radiation sources are strictly stored in a storage room or the like, and a system for receiving a strict check is established to take out the radiation sources from there.

Patent Document 1 discloses a radiation management area security system for managing radiation sources. The security system of Patent Document 1 manages the location of a radiation source by attaching an IC tag having an identification number stored in a radiation source storage container and detecting information of the IC tag with a gate antenna.
Registered Utility Model No. 3064026

  Now, usually, the radiation source is hermetically stored in a storage container that blocks radiation. The storage container varies depending on the intensity and type of radiation. For example, in the case of γ rays, a container made of a lead alloy is often used. The radiation source stored in such a storage container cannot be visually confirmed from the outside. In the case of the security system of Patent Document 1, the IC tag is attached to the storage container. However, in the case of the storage container formed of lead, the inside cannot be visually observed. For this reason, it cannot be confirmed from the outside of the container whether the radiation source is definitely in the storage container. Therefore, it may be assumed that the radiation source taken out is not stored in the storage container and only the storage container is returned. Of course, since the person to be taken out is strictly checked at the time of taking out, there is no possibility that the radiation source is lost or misused outside, but the above situation is not preferable in managing the radiation source.

  The present invention has been made in view of such circumstances, and an object thereof is to reliably manage a radiation source in association with a storage container.

  In order to achieve the above object, a storage container of the present invention is a storage container that stores a radiation source, a radiation detector that detects predetermined radiation source information emitted from the stored radiation source, and a radiation source. And an identification information recording means for storing identification information individually assigned to the information.

  According to such a configuration, it is possible to confirm that the radiation source is reliably stored in the storage container by detecting the radiation source information emitted from the radiation source by the radiation detector.

  Furthermore, if the display means for displaying the radiation source information detected by the radiation detector is provided on the outer surface, the radiation source stored in the storage container can be confirmed simply by looking at the display on the display means. Can do.

  The radiation detector can be configured to detect radiation source information including the radiation intensity of the radiation source. Furthermore, the radiation detector may be configured to detect radiation information including the line type or type of the radiation source.

Next, the radiation source management system of the present invention is a radiation source management system for managing the location of the radiation source in the radiation management area using the storage container having the above-described configuration,
In the radiation control area, there is a storage room for storing storage containers.
At the entrance and exit of the storage room and the radiation control area, the identification information reading means for reading the identification information recorded in the identification information recording means of the storage container passing through the entrance and exit, and the radiation source detected by the radiation detector of the storage container. A check gate including a radiation source information reading means for reading information and a transfer means for transferring each of the read information is provided,
Furthermore, a host computer for receiving identification information and radiation source information transferred from the check gate is provided,
The host computer records the identification information and radiation source information read when the storage container leaves the check gate, and records the identification information and radiation source information read when the storage container enters the check gate. Compared with certain identification information and radiation source information, if they match, it is determined that they are correctly returned, and if they do not match, it is determined that there is a return error.

  By constructing such a radiation source management system, it is possible to reliably grasp the location of the radiation source. Also, the management work at the time of taking out or returning the radiation source can be managed without human labor since each information of the radiation source is automatically read and recorded at the check gate.

Furthermore, the check gate includes a first check gate provided at the entrance of the storage room and a second check gate provided at the entrance of the radiation control area,
The host computer includes identification information and radiation source information read when the storage container exits the first check gate, and identification information and radiation source information read when the storage container exits the second check gate. If they match, it is possible to allow the second check gate to be taken out, and if they do not match, it is determined that there is a take-out error and the take-out is not permitted.

  By constructing such a double check system, it becomes possible to manage radiation sources more strictly.

  The identification information recording means is an IC tag attached to the outer surface of the storage container, and the identification information reading means is configured to read the identification information recorded on the IC tag in a non-contact manner. it can.

  As described above, according to the present invention, it is possible to reliably manage a radiation source in association with a storage container.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 7 are diagrams showing a radiation source management system according to the present embodiment. FIG. 1 is a perspective view schematically showing a radiation management area in which the radiation source management system of the present embodiment is constructed, and FIG. 2 is a block diagram showing an outline of the radiation source management system.
As shown in FIGS. 1 and 2, a storage room 1 for storing the radiation source 100 is provided in the radiation management area 2. Normally, the radiation source is allowed to be taken out in the radiation control area 2, and the radiation source is taken out to the non-radiation control area 3 outside it only in a special case. For example, in the radiation management area 2, in addition to the storage room 1, a laboratory, a waste storage room, and the like are installed. The radiation control area 2 and the storage room 1 are also managed by visitors. For example, the entrances and exits of the storage room 1 and the radiation control area 2 are always locked, and only those who have the key or those permitted to enter and exit by the administrator can pass through the entrances. Yes.

  The radiation source 100 stored in the storage room 1 is different in radiation intensity, in radiation type such as α-ray, β-ray, γ-ray, and X-ray, and in radiation source type (for example, cesium, iridium, radium, etc.). Various types are prepared.

  Here, the radiation source 100 having one unit is stored in one storage container 10 in association with each other. Various materials can be applied to the storage container 10 according to conditions such as the intensity of radiation and the line type, and the size and thickness can be changed as appropriate. For example, the storage container 10 can be formed of a thin aluminum material or the like for the radiation source 100 that emits α rays and β rays with low radiation intensity. For the radiation source 100 that emits γ-rays, it is preferable to form the storage container 10 with a lead alloy having a thickness.

FIG. 3 is a perspective view showing an example of a storage container used in the radiation source management system of the present embodiment.
As shown in FIGS. 2 and 3, the storage container 10 stored in the storage chamber 1 includes a container body 11 including a lid 11a, an IC tag 12 as identification information recording means, a radiation detector 13, and transmission / reception. And a control device 14.

  The IC tag 12 is affixed to the outer peripheral surface of the container body 11 of the storage container 10 (in the figure, affixed to the lid 11a). Identification information of the radiation source 100 is given to each IC tag 12 as magnetic data. The identification information of the radiation source 100 given to the IC tag 12 is automatically read when passing through first and second check gates 20 and 21 (described later) installed at the respective entrances and exits.

  The radiation detector 13 of the present embodiment employs a semiconductor detector and is built in the storage container 10. The semiconductor detector is a measuring device that detects radiation by applying high voltage to positive ions and electrons generated when the radiation is incident. This semiconductor detector can analyze the energy spectrum by measuring the energy of radiation as a distribution of pulse wave heights and decomposing the energy. The function of this semiconductor detector detects the intensity of radiation, the type of radiation source, and the radiation type as radiation source information.

  In the storage container 10, the detection terminal 13 a of the radiation detector 13 is exposed to the internal space where the radiation source 100 is stored. In the radiation detector 13, the detection terminal 13 a detects radiation source information of the radiation source 100 and outputs the radiation source information to the transmission / reception control device 14.

  The transmission / reception control device 14 has a function of transmitting radiation source information (radiation intensity, radiation type, radiation source type) of the radiation source 100 to the outside. The transmission / reception control device 14 is attached to the outer peripheral surface of the container main body 11, and includes an arithmetic unit, a storage unit, a transceiver, an alarm device (both not shown), and the like. The calculation unit of the transmission / reception control device 14 has a function of periodically reading the radiation source 100 radiation source information from the radiation detector 13 and storing it in the storage unit. When the transceiver receives a specific radio signal from the outside, the radiation source information of the radiation source 100 stored in the storage unit is called and the transmitter / receiver operates to automatically transmit the radiation source information.

  Further, the transmission / reception control device 14 is provided with a display unit 14a (display means), and displays radiation source information of the radiation source 100 stored in the storage container 10. Furthermore, the transmission / reception control device 14 is provided with a charging unit 15 that charges power from the external power source 16, and a power source for operating the radiation detector 13 and the transmission / reception control device 14 is provided for long-term storage of the radiation source. It is secured.

  The storage container 10 configured as described above stores the radiation source 100 therein and is stored in an electrically connected state with the external power source 16 of the storage chamber 1. At this time, the radiation source information of the radiation source 100 in which the radiation detector 13 of the storage container 10 is stored is measured. Then, each information of the measured radiation source is periodically sent to the transmission / reception control device 14 and displayed on the display unit 14a. Thereby, when taking out the radiation source 100, the taker can visually confirm the information of the radiation source 100, and the selection of the radiation source 100 is not time-consuming.

  As shown in FIG. 1 and FIG. 2, the radiation source management system according to the present embodiment is an area between the storage room 1 and the radiation management area 2 and between the radiation management area 2 and the non-radiation source management area 3. A first check gate 20 and a second check gate 21 are respectively installed at the entrance / exit. Further, a terminal device 22 and an alarm alert 23 are provided in the vicinity of each of these check gates 20 and 21.

The first and second check gates 20 and 21 transmit a specific frequency signal as a radio wave, and receive a magnetic information receiving function (identification information reading means) that receives the identification information given to the IC tag 12 of the storage container 10. )have. Each of the check gates 20 and 21 transmits a signal different from the frequency signal described above and receives a radio wave information reception function (radiation source information reading) for receiving the radiation source information of the radiation source 100 transmitted from the transmission / reception control device 14. Means). Each of these receiving functions is configured to automatically receive each information when the radiation source 100 approaches the vicinity of each gate.
Furthermore, each check gate 20, 21 has a function (transfer means) for transferring received various information to the host computer 30 of the radiation source management system.

  The terminal device 22 of the radiation source management system is installed in the vicinity of the doorway inside each check gate 20, 21. The terminal device 22 may be a general general-purpose computer configured with a monitor, a keyboard, a memory, an arithmetic device, and the like. Both terminal devices 22 are connected to a host computer 30 in another location (for example, a management center) via an intra-area network such as an in-house LAN. Necessary information regarding the radiation source 100 is manually input to the terminal device 22. Then, the terminal device 22 can transmit this necessary information to the host computer 30 and display information sent from the host computer 30 on the monitor.

  The alarm alert 23 is a device that notifies an abnormal situation when the radiation source 100 is taken out. This alarm alert 23 has a lamp inside and is attached to both the indoor side and the outside of each check gate 20, 21. The alarm alert 23 is connected to the host computer 30, and blinking is started or stopped according to an instruction from the host computer 30.

FIG. 4 is a block diagram showing a host computer of the radiation source management system of this embodiment.
As shown in the figure, the host computer 30 includes a CPU (arithmetic unit) 31 and a memory 32 therein. The host computer 30 includes an input / output interface 33 connected to each check gate 20, 21, a network interface 34 connected to the terminal device 22, and an output interface 35 connected to the alarm alert 23. .

  The memory 32 of the host computer 30 stores a radiation source management system management program (discriminating means) 36 and a radiation source 100 database. The management program 36 and the database stored in the memory 32 are called as necessary by a command from the CPU 31 and are overwritten and stored.

  The database information stored in the memory 32 includes identification information 40, a radiation source name 41, a radiation intensity 42, a radiation source type 44, a radiation type 43, out-of-management area permission information 45, a radiation source manager and management. There is a responsible person contact address 46, a past use history 47, and the like. In addition, the information on the radiation source 100 is displayed as “in storage” if the radiation source 100 is actually in a storage state, and switched to “in the take-out” if in use, so that the manager in charge can easily check the information. It has become.

  On the other hand, information input to the terminal device 22 and transmitted to the host computer includes identification information 50, a radiation source name 51, a take-out date / time 52, a take-out person 53, a take-out person contact address 54, and a return schedule. There are a date and time 55, an application 56 for permission to take outside the management area, a return person 57, a return date and time 58, and the like. The information of the radiation source 100 input to the first check gate 20 includes identification information 60, container take-out gate passage date / time 61, container return gate passage date / time 62, radiation intensity 63, radiation source type 65, line Examples of the information input from the second check gate 21 include identification information 70, a container take-out gate passage date / time 71, radiation intensity 72, a radiation source type 74, a line type 73, and the like. There is.

  The management program 36 of the radiation source management system associates each information of the radiation source 100 transmitted from the terminal device 22 or each check gate 20, 21 with information on the radiation source 100 stored in the memory 32 in advance. A program to compare and process Further, the terminal device 22 is programmed with an input screen for guiding the input information of the radiation source so that it can be easily input, and bidirectional data transmission and reception with the management program 36 of the host computer 30 is realized.

FIG. 5 is a flowchart showing the processing operation by the management program of the radiation source management system of this embodiment.
Next, in the processing flow of the radiation source management system, the case where the storage container 10 storing the radiation source 100 is taken out from the storage room 1 and the case where the storage container 10 is returned to the storage room 1 are described with reference to FIG. explain.

  In step S <b> 1, the input screen of the terminal device 22 is activated by an activation instruction from the person who brought the radiation source 100. When the input screen is activated, the management program 36 of the host computer 30 is automatically connected to the network.

  Thereafter, the taker manually inputs each information of the radiation source 100 from the terminal device 22 (step S2). Information input at this time includes identification information 50, radiation source name 51, take-out date / time 52, take-out person 53, take-out person contact address 54, scheduled return date / time 55, and application 56 for permission to take out of the management area. (See FIG. 4). The method for inputting each information may be input using a keyboard attached to the terminal device 22. For example, the take-out person 53 and the take-out person contact address 54 input an employee ID or an employee ID. It may be programmed to be automatically called just by reading with a dedicated device.

  Then, the input information of the radiation source 100 is transmitted to the host computer 30 (step S3). The host computer 30 calls each piece of information on the radiation source 100 based on the transmitted information from the database of the radiation source 100 stored in the memory 32.

  Next, the storage container 10 is brought close to the first check gate 20 so that each information of the radiation source 100 is automatically read by the first check gate 20 and transmitted to the host computer 30 (step S4). As information read by the transmission gate 20, the identification information 60 given to the IC tag 12, the intensity 63 of the radiation transmitted from the transmission / reception control device 14, the line type 64, the type 65 of the radiation source, and the reading time were measured. There is a container take-out gate passage date 61 (see FIG. 4).

In the host computer 30, the information on the radiation source 100 sent from the first check gate 20 is compared with each information on the radiation source 100 called from the database of the radiation source 100, and the mutual information matches. It is determined whether or not there is (step S5). If the information matches, the carry-out person of the storage container 10 is passed through the first check gate 20 as it is, and each piece of information on the input radiation source is stored in the memory 32. At the same time, the storage information of the radiation source 100 to be taken out is changed from “being kept” to “being taken out”. On the other hand, if the information is different, it is determined that the radiation source 100 is not to be taken out, and the process proceeds to steps S6 to S8.
The nuclide of the radiation source 100 is gradually destroyed by long-term storage. The decay rate can be calculated by calculating the half-life, and stored by being incorporated in the management program 36. The information of the radiation source 100 that has been used can be automatically changed.

  If it is determined that the radiation source 100 is not to be taken out, the manager responsible contact address 46 is called, and an automatic delivery mail for notifying that there is an abnormality in taking out the radiation source is transmitted (step S6). Further, a signal is also transmitted to the alarm alert 23, and the alarm alert is blinked on the upper part of the first check gate 20 (step S7). Furthermore, a specific signal is transmitted to the transmission / reception control device 14 of the storage container 10 via the first check gate 20 to activate the alarm device of the transmission / reception control device 14 (step S8).

  Through these processes of steps S7 and S8, the take-out person is notified of the abnormal state of the radiation source 100 to be taken out. This abnormal state can be resolved by inputting a certain amount of time or correct radiation source 100 information. By taking such steps, the radiation source management system can reliably manage which radiation source 100 has been taken out when the storage container 10 is taken out from the storage chamber 1.

  When returning the storage container 10 taken out, when the return person passes the first check gate 20, the first check gate 20 automatically reads each information of the radiation source 100 and transmits it to the host computer 30 (step). S9). As information read by the first transmission gate 20 at the time of return, the identification information 60 given to the IC tag 12, the intensity 63 of the radiation transmitted from the transmission / reception control device 14, the line type 64, and the type 65 of the source And the container return gate passage date and time 62 in which the read time is measured.

Next, each information of the radiation source 100 sent from the first check gate 20 is compared with the information of the radiation source 100 input before taking out, and it is determined whether each information matches. (Step S10). In this determination, after confirming the coincidence of the identification information 60 at the time of return and take-out, the intensity 63, the line type 64, and the type 65 of the radiation source, which are the radiation source information of the radiation source 100 at the time of return and take-out, are determined. Each is compared. At this time, if the radiation source information of the radiation source 100 matches each other, it is determined that the correct radiation source 100 is in the storage container 10. Then, the returner of the storage container 10 passes through the first check gate 20 as it is, and the process proceeds to step S14.
The comparison of the radiation source 100 at the time of return and take-out is not limited to the above-described determination method, and for example, the determination may be made based only on the intensity 63 of the radiation source.

  On the other hand, if the information of the radiation source 100 does not match, the wrong radiation source 100 is put in the storage container 10 or there is no radiation source. For this reason, the management program 36 determines that the storage container 10 is not to be returned, and proceeds to steps S11 to S13.

  If it is determined that the storage container 10 is not to be returned, an automatic delivery mail is sent to the manager responsible contact address 46 informing that there has been an abnormality in returning the radiation source (step S11). Further, a signal is also transmitted to the alarm alert 23, and the alarm alert is blinked at the upper part of the first check gate 20 (step S12). Furthermore, a specific signal is transmitted to the transmission / reception control device 14 of the storage container 10 via the first check gate 20 to activate the alarm device of the transmission / reception control device 14 (step S13).

  Through these processes in steps S12 and S13, the returner is notified of the abnormal state of the radiation source 100 to be returned. Then, after a certain time has elapsed, the operations in steps S12 and S13 are stopped. By taking these steps, the radiation source management system can reliably manage the radiation source 100 to be returned when the storage container 10 is returned to the storage room 1.

  Further, after the radiation source 100 is returned, necessary information of the radiation source 100 returned by the returner is manually input (step S14). At this time, the manually input information includes identification information 50, a radiation source name 51, a return person 57, a return date and time 58, and the like.

And the return of the radiation source 100 is completed by transmitting the input information of the input radiation source 100 to the host computer 30 (step S15). In the host computer, the radiation source information is changed from “taking out” to “in storage”, and various information such as past use history 47 of the radiation source 100 is updated and stored in the memory 32 as a database.
By following the processing flow as described above, the return of the storage container 10 and the radiation source 100 to the storage room 1 can be reliably managed.

FIG. 6 is a flowchart showing a processing operation for taking out a storage container to a non-management area according to the management program of the radiation source management system of the present embodiment, and FIG. 7 is a case where the return time of the storage container by the management program is approaching. It is a flowchart which shows a processing operation.
As shown in FIG. 6, when the storage container 10 is taken out to a non-radiation control area, when the storage container 10 approaches the second check gate 21, the second check gate 21 automatically stores each information of the radiation source 100. Read (step S21). As information of the radiation source 100 read at this time, the identification information 70 given to the IC tag 12, the intensity 72 of the radiation transmitted from the transmission / reception control device 14, the line type 73, and the type 74 of the source are read. There is a container take-out gate passage date and time 71 outside the management area where the time is measured.

  Thereafter, the read information of the radiation source 100 is transmitted to the host computer 30 (step S22). And the information of the radiation source 100 based on the identification information 70 is called from the stored data of the radiation source 100 being taken out.

  Next, referring to the out-of-management area permission information 45 from the data of the called radiation source 100 being taken out, it is determined whether or not the radiation source 100 is allowed to be taken out (step S23). If the radiation source 100 is allowed to be taken out at this time, the process proceeds to step S24. On the other hand, if the taking out of the radiation source 100 is not permitted, the process proceeds to steps S26 to S28.

  In step S24, the data 56 of the called out radiation source 100 is referred to the take-out permission 56 for taking out the outside of the management area 3 inputted when taking out from the storage room 1, and the permission for taking out the radiation source 100 is applied. To determine if it is. At this time, if there is an application for permission to take out the radiation source 100, the process proceeds to step S25. On the other hand, if the application for permission to take out the radiation source 100 has not been made, the process proceeds to steps S26 to S28.

  In step S25, the information of the radiation source intensity 63, the radiation type 64, and the radiation source type 65 is referred to from the data of the called radiation source 100 when passing through the first check gate, and the second check gate 21 It is determined whether or not the transmitted radiation source intensity 72, line type 73, and radiation source type 74 coincide with the information. At this time, if the information on the intensity, the line type, and the type of the radiation source of the radiation source 100 match, it is determined that the radiation source can be taken out of the radiation control area 3 and the second check gate 21 is set. Let it pass. On the other hand, if the information of the radiation source 100 is different, it is determined that the radiation source 100 contained in the storage container 10 should not be taken out, and the process proceeds to steps S26 to S28.

  If it is determined in step 25 that it should not be taken out to the non-radiation control area 3, an automatic delivery mail is sent to the management person contact address 46 of the radiation source 100 notifying that there is an abnormality in taking out the radiation source 100. Transmit (step S26). Further, a signal is also transmitted to the alarm alert 23, and the alarm alert is blinked on the upper part of the second check gate 21 (step S27). Further, a specific signal is transmitted to the transmission / reception control device 14 of the storage container 10 via the second check gate 21 to activate the alarm device of the transmission / reception control device 14 (step S28).

  By taking the above steps, the radiation source management system can reliably manage the take-out of the storage container 10 from the radiation management area 2 to the non-radiation management area 3.

  Further, as shown in FIG. 7, the management program 36 regularly compares the scheduled return date and time 55 input at the time of take-out with the current time for the storage container 10 being taken out. It is determined whether or not it is before (step S31).

  Then, when the return time of the storage container 10 is one hour ago, it is notified that the return time is approaching (step S32). As this notification method, a specific signal is transmitted from a transmission device provided in each place in the facility to sound an alarm in the transmission / reception control device 14 of the storage container 10, or a carry-out input at the time of take-out There is a method of sending an automatic delivery mail to the person-in-charge contact address 54.

  Further, the host computer 30 regularly determines whether or not an application for extending the scheduled return date and time 55 of the radiation source 100 has been applied (step S33). The extension of the scheduled return date and time 55 of the radiation source 100 includes, for example, a method of changing the date and time by accessing the management program 36 of the host computer 30 from the computer 22 connected to the intra-area network. At this time, if an extension of the scheduled return date and time 55 is applied, a comparison with the current time is newly started at the applied scheduled return date and time. On the other hand, if the extension of the scheduled return date and time 55 has not been applied, the process proceeds to step S34.

  Further, in step S34, for the storage container 10 being taken out, the scheduled return date 55 inputted at the time of take-out and the current time are regularly compared, and it is determined whether or not the return time of the storage container 10 has been reached. Judging.

  When the return time of the storage container 10 is reached, it is determined whether or not the taken-out storage container 10 has been returned to the storage chamber 1 (step S35). At this time, if the storage container 10 has passed through the first check gate 20, it is determined that the storage container 10 has been returned to the storage chamber 1, and the program ends. On the other hand, if the storage container 10 has not passed through the first check gate 20, it is determined that the storage container 10 has not been returned to the storage chamber 1, and the process proceeds to steps S36 to S38.

  If it is determined that the storage container 10 has not been returned, an automatic delivery mail is sent from the host computer 30 to the manager responsible contact address 46 of the radiation source 100 to notify that there has been an abnormality in returning the radiation source 100. (Step S36). Further, a specific signal is transmitted from a transmitting device provided in each place in the facility to activate an alarm device in the transmission / reception control device 14 of the storage container 10 (step S37).

As described above, the radiation source management system can reliably manage the location of the radiation source 100 by managing the passage of the check gates 20 and 21 of the storage container 10. Further, even if the inside of the storage container 10 is not visible, the state of the stored radiation source 100 can be known, and even if the radiation source 100 is mistakenly inserted into the storage container 10, it is possible to easily determine the error. It is.
Note that the radiation source management system is not limited to the above-described embodiment, and various application implementations and modification implementations are possible as needed.
For example, the radiation source management system may be configured to add a function as identification information recording means to the transmission / reception control device 14 installed in the storage container 10 so that the device 14 records and transmits the identification information. With this configuration, it is not necessary to attach the IC tag 12 to the storage container 10.

It is a perspective view which shows the outline of the radiation management area where the radiation source management system of this embodiment was constructed | assembled. It is a block diagram which shows the outline | summary of the radiation source management system of this embodiment. It is a perspective view which shows an example of the storage container applied to the radiation source management system of this embodiment. It is a block diagram which shows the host computer of the radiation source management system of this embodiment. It is a flowchart which shows the processing operation by the management program of the radiation source management system of this embodiment. It is a flowchart which shows another processing operation (when taking a storage container to a non-management area) by the management program of the radiation source management system of this embodiment. It is a flowchart which shows another processing operation (when the return time of a storage container approaches) by the management program of the radiation source management system of this embodiment.

Explanation of symbols

1: storage room, 2: radiation control area, 3: non-radiation control area,
10: storage container, 11: container body, 12: IC tag, 13: radiation detector, 14: transmission / reception control device, 15: charging unit, 16: external power supply,
20: First check gate, 21: Second check gate, 22: Terminal device, 23: Alarm alert,
30: host computer, 31: arithmetic device, 32: memory, 33: input interface, 34: input / output interface, 35: output interface, 36: management program,
40: Identification information, 41: Radiation source name, 42: Radiation intensity, 43: Radiation type, 44: Radiation source type, 45: Out-of-control area permission information, 46: Radiation source manager and manager contact information Address, 47: Past usage history,
50: Identification information, 51: Name of radiation source, 52: Date and time of take-out, 53: Person in charge of take-out, 54: Contact address of person in charge of take-out, 55: Scheduled return date and time, 56: Application for permission to take out outside the management area, 57 : Container take-out gate passage date and time, 58: Container return gate passage date and time, 59: Radiation intensity, 60: Line type, 61: Type of radiation source, 62: Return person in charge, 63: Return date and time, 64: Container outside management area Take-out gate passage date and time

Claims (7)

A storage container for storing a radiation source,
A radiation detector for detecting predetermined radiation source information emitted from the stored radiation source;
And an identification information recording means for storing identification information individually assigned to the radiation source. 2. The storage container according to claim 1, further comprising display means for displaying radiation source information detected by the radiation detector on an outer surface. The storage container according to claim 1, wherein the radiation detector detects radiation source information including radiation intensity of the radiation source. 4. The storage container according to claim 3, wherein the radiation detector further detects radiation information including a line type or type of the radiation source. A radiation source management system for managing the location of the radiation source in a radiation management area using the storage container according to claim 1,
In the radiation management area, a storage room for storing the storage container is installed,
Detected by the identification information reading means for reading the identification information recorded in the identification information recording means of the storage container passing through the entrance and exit of the storage room and the radiation control area, and also by the radiation detector of the storage container A check gate including radiation source information reading means for reading the read radiation source information and transfer means for transferring each of the read information,
Furthermore, a host computer for receiving the identification information and radiation source information transferred from the check gate is provided,
The host computer records identification information and radiation source information read when the storage container exits the check gate, and stores the identification information and radiation source information read when the storage container enters the check gate. In comparison with the recorded identification information and radiation source information, if they match, it is determined that they are correctly returned, and if they do not match, it is determined that there is a return error. . The check gate includes a first check gate provided at an entrance of the storage room and a second check gate provided at an entrance of the radiation control area,
The host computer includes identification information and radiation source information read when the storage container exits the first check gate, identification information read when the storage container exits the second check gate, and Compared with radiation source information, if they match, take-out from the second check gate is permitted, and if they do not match, it is determined that there is a take-out error and take-out is not permitted. Item 5. Radiation source management system. The identification information recording means is an IC tag attached to the outer surface of the storage container, and the identification information reading means is configured to read the identification information recorded on the IC tag in a non-contact manner. The radiation management system according to claim 5 or 6, characterized by the above.

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