Radiation detection element integrated card, dosage reading write-in system, in/out management system

【0001】

[Technical field to which the invention belongs]

The present invention is a radiation detection element integrated card for measuring the radiation exposure dose of a user working in a controlled area such as a nuclear power plant, and a radiation amount reading / writing for reading and writing the radiation detection element integrated card. The present invention relates to a system and an exposure management system using the radiation detection element integrated card.

【0002】

[Conventional technology]

Users who work in controlled areas such as nuclear power plants (hereinafter referred to as users) are obliged to manage radiation exposure dose values and working hours in the controlled areas.

【0003】

An entry / exit management system for a nuclear power plant will be described as an example. Figure 10 shows the configuration diagram of the conventional entry / exit management system. FIG. 11 shows an embodiment of the memory configuration of the memory area of the IC card 201. Figure 12 shows an example of record definition in the database of the radiation control computer.

【0004】

The conventional entry / exit management system 230 shown in FIG. 10 is composed of an IC card 201, an entry / exit device 210, and a radiation management computer 40. The IC card 201 has a chip 204 having a memory area in which the identification information of the user 30 is written. The measuring instrument 200 reads out the identification information of the user 30 by contacting with the IC card 201 or without contacting the IC card 201, and writes the exposure information in the memory area. The entry / exit device 210 reads dose information from the electronic personal dosimeter 20 and controls the entry / exit of the user 30. In the online processing in which the entrance / exit device 210 and the radiation control computer 40 are connected via a dedicated line, the radiation management computer 40 performs all the data storage and entry / exit control of the entry / exit processing results. For example, in the offline processing in which the entrance / exit device 210 is not connected via the dedicated line of the radiation management computer 40 due to the maintenance work of the radiation management computer 40, the record data storage of the entry / exit processing and the entry / exit control are all performed by the entry / exit device 210. Do it alone. Then, after the maintenance work of the radiation control computer 40 is completed, the actual data of the entry / exit processing is transmitted to the radiation control computer 40.

【0005】

The memory configuration of the memory area of the IC card 201 of FIG. 11 will be described. The user ID is a code for uniquely identifying the user 30. The expiration date indicates the expiration date that the user 30 can enter and leave the controlled area. The user classification indicates the qualification when the user 30 enters and leaves the controlled area. The affiliation code is a code for uniquely identifying the affiliation company of the user 30. The IC card 201 stores fixed data and does not rewrite the data each time it enters or exits.

【0006】

The record definition of the database of the radiation control computer shown in Fig. 12 will be described. Figure 12 (a) shows the user DB. The user ID is a code for uniquely identifying the user 30. The expiration date indicates the expiration date that the user 30 can enter and leave the controlled area. The user classification indicates the qualification when the user 30 enters and leaves the controlled area. The affiliation code is a code for uniquely identifying the affiliation company of the user 30. Figure 12 (b) shows the actual data DB of the user. The user ID is a code for uniquely identifying the user 30. The exposure information of the user shows the past exposure record of the user 30. The 1-year dose value indicates the dose value for the past year. The 3-month dose value indicates the dose value for the past 3 months. The monthly dose value indicates the dose value of the previous month. The current month's dose value indicates the current month's dose value. The weekly dose value indicates the dose value for the current week. The dose value on the day indicates the dose value already exposed on the day. The working time on the day indicates the time already worked on the day. The work number of the user is a work number permitted to the user 30. The planned dose value is the dose value planned for the work content of the day. The planned work time is the work time planned for the work content of the day.

【0007】

When the user enters the controlled area, the dose value obtained by subtracting the current day dose value from the planned dose value and the time obtained by subtracting the current day work time from the planned work time are set in the electronic personal dosimeter. The electronic personal dosimeter verifies the actually measured dose value (hereinafter referred to as the actual dose value) and the working time (hereinafter referred to as the actual working time) in real time, and the actual dose value exceeds the planned dose value during the work. If the actual work time exceeds the planned dose value, an alarm sounds and the user is notified. The user recognizes the alarm status by the alarm sound and the displayed value of the electronic personal dosimeter, and leaves the controlled area.

【0008】

When the user leaves the controlled area, the actual dose value and actual working time of the electronic personal dosimeter are read and the exposure information of the user is updated.

【0009】

Conventionally, the user carries an electronic personal dosimeter and a backup dosimeter such as a film badge to work in the controlled area. The backup dosimeter is to guarantee the reading of the actual dose value when the electronic personal dosimeter fails and the actual dose value or the actual working time cannot be read. Film badges are often used as a medium for backup dosimeters.

【0010】

Film badges are usually replaced on a monthly basis and are developed and measured by a specialized measurement company. The radiation manager compares the integrated value of the actual dose value of the electronic personal dosimeter with the radiation dose of the backup dosimeter on a monthly basis, and confirms that the integrated value of the actual dose value of the month is correct.

【0011】

It took at least a few days for the film badge to be sent to a specialized measurement company for development and radiation measurement, and the results to be known. There is no problem in normal operation, but there is a problem in the measurement method that takes several days as shown above when the electronic personal dosimeter breaks down and it is urgently necessary to determine the actual dose value. The radiation manager is obliged to determine the actual dose value and actual working hours of the user on a daily basis. The radiation manager cannot permit the work of the next day without determining the actual dose value and the actual work time of the day.

【0012】

As a result, the user does not have a work permit and cannot work in the controlled area. If the user is an inspector or site manager, it may affect the process progress at the work site.

【0013】

It is terrible for the user that the user cannot work in the controlled area due to the failure of the electronic personal dosimeter, not the cause caused by the user. In order to avoid such a situation, the use of a backup dosimeter capable of measuring in real time has been eagerly desired.

【0014】

Next, OSL (Optical Sutimulated Luminescence) will be described. OSL was developed as a next-generation dosimeter. As a method for measuring OSL, for example, Special Table 2000-503396 and Special Table 2000-503759 are published. These describe the components of OSL, the laser irradiation method, and the light reception measurement method.

【0015】

Furthermore, Japanese Patent Application Laid-Open No. 11-237479 discloses a method in which an OSL is provided at the tip of an irradiation optical path fiber and a light receiving fiber, the irradiation optical path fiber is irradiated with a laser beam, and the OSL light emitted from the OSL is received and measured. Has been done.

【0016】

In the conventional reader of a thermofluorescent dosimeter, the size of the device housing may be large in order to eliminate the influence of heat due to continuous use, but since OSL uses laser light, there is no need to worry about heat and a compact reading is possible. The part can be formed.

【0017】

[Problems to be Solved by the Invention]

The present invention has been made in consideration of the above points, and OSL (Optical Sutimulated Luminescence) is used as a fluorescent material used for detecting the radiation of a backup dosimeter.

【0018】

The present invention provides a radiation detection element integrated card that measures radiation exposure dose by incorporating OSL into an ID card that the user always carries. Furthermore, a radiation dose reading / writing system that reads and writes the radiation detection element integrated card by reading the OSL reader inside the measuring instrument and the entrance / exit device, and an exposure management system that uses the radiation detection element integrated card. I will provide a.

【0019】

[Means for solving problems]

In order to solve the above problems, the radiation detection element integrated card according to claim 1 of the present invention includes a fluorescent material mounting portion for mounting a fluorescent material used for detecting radiation, and a chip having a memory area. To do.

【0020】

With the above configuration, the radiation detection element integrated card can output the actual dose value of the fluorescent material and store the user management information internally. As a result, even if the electronic personal dosimeter fails and the actual dose value cannot be read, the actual dose value in the work of the user can be determined by adopting the actual dose value of the card with integrated radiation detection element. Can be done.

【0021】

The radiation detection element integrated card according to claim 2 of the present invention includes a fluorescent material mounting portion for mounting a fluorescent material used for detecting radiation, and a chip having a memory area.

【0022】

With the above configuration, the radiation detection element integrated card can be attached with a replaceable fluorescent material. As a result, the fluorescent material can be automatically replaced during the reading process in the entry / exit device.

【0023】

In the radiation detection element integrated card according to claim 3 of the present invention, the fluorescent material is OSL.

【0024】

With the above configuration, the radiation detection element integrated card can use OSL as the fluorescent material.

【0025】

In the radiation detection element integrated card according to claim 4 of the present invention, the exposure information of the user is stored in the memory area of the chip.

【0026】

With the above configuration, the radiation detection element integrated card can store the exposure information of the user.

【0027】

The radiation amount reading / writing system according to claim 5 of the present invention is a chip having a fluorescent material mounting portion for mounting a fluorescent material used for detecting radiation and a memory area in which user identification information and exposure information are written. By contacting the radiation detection element integrated card having the above and the radiation detection element integrated card, or by non-contacting, the identification information and the exposure information of the user are read out, and the exposure information is stored in the memory area. It consists of a measuring instrument to write.

【0028】

With the above configuration, the radiation amount reading / writing system can read and write the user's identification information and the exposure information stored in the radiation detection element integrated card in contact or non-contact in the reading process in the measuring instrument.

【0029】

The radiation amount reading / writing system according to claim 6 of the present invention has a configuration capable of writing an exposure amount for a plurality of predetermined periods in a memory area.

【0030】

With the above configuration, the radiation amount reading / writing system receives the exposure amount for a predetermined period from the radiation control computer in the online operation in which the radiation control computer and the measuring instrument are connected in the reading process in the measuring instrument, and the radiation detection element is one. You can write on the body card. Further, the radiation amount reading / writing system can refer to the exposure amount of the user for a predetermined period by reading the exposure amount for a predetermined period stored in the radiation detection element integrated card.

【0031】

The entry / exit management system according to claim 7 of the present invention includes a fluorescent material attachment portion for attaching a fluorescent material used for detecting radiation, and a chip having a memory area in which user identification information and exposure information are written. The user's identification information and exposure information are read out by contacting the radiation detection element integrated card with the radiation detection element integrated card and the radiation detection element integrated card, or the exposure information is written in the memory area. It is composed of a measuring instrument and an entry / exit device capable of reading dose information from the radiation detection element integrated card and controlling entry / exit of the user.

【0032】

With the above configuration, even if the electronic personal dosimeter fails and the actual dose value cannot be read, the entrance / exit management system adopts the actual dose value of the radiation detection element integrated card, so that the user can perform the work in question. The actual dose value can be determined.

【0033】

In addition, the entry / exit management system can control entry / exit by reading the user's identification information and exposure information from the radiation detection element integrated card even in offline operation in which the radiation management computer and the entry / exit device are not connected. Further, the entry / exit management system can write the exposure information reflecting the results of the entry / exit processing on the radiation detection element integrated card in the exit processing.

【0034】

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

【0035】

(Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. 1 and 2.

【0036】

FIG. 1 is a configuration diagram of a card with an integrated radiation detection element. FIG. 2 shows an embodiment of the memory configuration of the memory area.

【0037】

FIG. 1 is a configuration diagram of a card with an integrated radiation detection element. The radiation detection element integrated card 1 includes a fluorescent material mounting portion 3 for mounting the fluorescent material 2 used for detecting radiation, and a chip 4 having a memory area.

【0038】

FIG. 2 shows an embodiment of the memory configuration of the memory area. The user ID is a code for uniquely identifying the user 30. The expiration date indicates the expiration date that the user 30 can enter and leave the controlled area. The user classification indicates the qualification when the user 30 enters and leaves the controlled area. The affiliation code is a code for uniquely identifying the affiliation company of the user 30.

【0039】

The radiation detection element integrated card 1 can output the actual dose value of the fluorescent material 2 and store the user management information internally. As a result, even if the electronic personal dosimeter 20 fails and the actual dose value cannot be read, by adopting the actual dose value of the radiation detection element integrated card 1, the actual dose value of the user 30 in the work concerned can be obtained. Can be confirmed. By using OSL as the fluorescent material, the housing size of the reader can be reduced.

【0040】

(Embodiment 2) Embodiment 2 of the present invention will be described with reference to FIG.

【0041】

FIG. 3 is a configuration diagram of a card with an integrated radiation detection element.

【0042】

The radiation detection element integrated card 1 includes a fluorescent material attachment portion 3 for attaching the fluorescent material 2 used for detecting radiation, and a chip 4 having a memory area, and the fluorescent material 2 can be exchangeably attached. FIG. 3A shows a state in which the fluorescent material 2 is attached to the radiation detection element integrated card 1. FIG. 3B shows a state in which the fluorescent material 2 is removed from the radiation detection element integrated card 1. The fluorescent material 2 has a structure that can be easily removed and attached from the radiation detection element integrated card 1.

【0043】

As a result, the radiation detection element integrated card 1 can automatically replace the fluorescent material 2 during the manual operation and the reading process in the reading device. By using OSL as the fluorescent material, the housing size of the reader can be reduced.

【0044】

(Embodiment 3) Embodiment 3 of the present invention will be described with reference to FIGS. 4 and 5.

【0045】

FIG. 4 is a block diagram of a card with an integrated radiation detection element. FIG. 5 shows an embodiment of the memory configuration of the memory area.

【0046】

FIG. 4 is a block diagram of a card with an integrated radiation detection element. The radiation detection element integrated card 1 includes a fluorescent material mounting portion 3 for mounting the fluorescent material 2 used for detecting radiation, and a chip 4 having a memory area.

【0047】

FIG. 5 shows an embodiment of the memory configuration of the memory area. The user ID is a code for uniquely identifying the user 30. The expiration date indicates the expiration date that the user 30 can enter and leave the controlled area. The user classification indicates the qualification when the user 30 enters and leaves the controlled area. The affiliation code is a code for uniquely identifying the affiliation company of the user 30. The exposure information of the user 30 indicates the past exposure record of the user 30. The 1-year dose value indicates the dose value for the past year. The 3-month dose value indicates the dose value for the past 3 months. The monthly dose value indicates the dose value of the previous month. The current month's dose value indicates the current month's dose value. The weekly dose value indicates the dose value for the current week. The dose value on the day indicates the dose value already exposed on the day. The working time on the day indicates the time already worked on the day.

【0048】

The radiation detection element integrated card can store the exposure information of the user 30 stored only by the radiation management computer 40 in the conventional radiation management system.

【0049】

(Embodiment 4) Embodiment 4 of the present invention will be described with reference to FIGS. 6 and 7.

【0050】

FIG. 6 is a block diagram of a radiation amount reading / writing system. FIG. 7 shows an embodiment of the identification information and the exposure information of the user 30 in the memory area.

【0051】

The configuration diagram of the radiation amount reading / writing system of FIG. 6 will be described. The radiation amount reading / writing system 120 is composed of a radiation detection element integrated card 1 and a measuring instrument 100. The radiation detection element integrated card 1 has a fluorescent material mounting portion 3 for mounting the fluorescent material 2 used for detecting radiation, and a chip 4 having a memory area. The measuring instrument 100 reads out the identification information and the exposure information of the user 30 by contacting with the radiation detection element integrated card 1 or non-contacting, and writes the exposure information in the memory area.

【0052】

An embodiment of the user identification information and the exposure information of the memory area of FIG. 7 will be described. The user ID is a code for uniquely identifying the user 30. The expiration date indicates the expiration date that the user 30 can enter and leave the controlled area. The user classification indicates the qualification when the user 30 enters and leaves the controlled area. The affiliation code is a code for uniquely identifying the affiliation company of the user 30. The exposure information of the user 30 indicates the past exposure record of the user 30. The 1-year dose value indicates the dose value for the past year. The 3-month dose value indicates the dose value for the past 3 months. The monthly dose value indicates the dose value of the previous month. The current month's dose value indicates the current month's dose value. The weekly dose value indicates the dose value for the current week. The dose value on the day indicates the dose value already exposed on the day. The working time on the day indicates the time already worked on the day.

【0053】

The measuring instrument 100 reads the identification information and the exposure information of the user 30 of the radiation detection element integrated card 1 in contact or non-contact. The measuring instrument 100 reads the dose value of the fluorescent material 2 and measures this time for the 1-year dose value, 3-month dose value, 1-month dose value, current-month dose value, weekly dose value, current-day dose value, and current-day working time of the exposure information. Add the results of. Further, the measuring instrument 100 writes the updated exposure information to the radiation detection element integrated card 1 in contact or non-contact.

【0054】

With the above configuration, the radiation amount reading / writing system 120 reads out the identification information and the exposure information of the user 30 stored in the card integrated with the radiation detection element in the reading process of the measuring instrument 100, and measures this time. It is possible to write the exposure information that reflects the result of.

【0055】

(Embodiment 5) Embodiment 5 of the present invention will be described with reference to FIGS. 8 and 9.

【0056】

FIG. 8 is a configuration diagram of an entry / exit management system. FIG. 9 shows an embodiment of the identification information and the exposure information of the user 30 in the memory area.

【0057】

The configuration diagram of the entry / exit management system shown in FIG. 8 will be described. The entry / exit management system 130 includes a radiation detection element integrated card 1 and an entry / exit device 110. The radiation detection element integrated card 1 has a fluorescent material mounting portion 3 for mounting the fluorescent material 2 used for detecting radiation, and a chip 4 having a memory area in which identification information and exposure information of the user 30 are written. .. The measuring instrument 100 reads out the identification information and the exposure information of the user 30 by contacting with the radiation detection element integrated card 1 or non-contacting, and writes the exposure information in the memory area. The entry / exit device 110 reads dose information from the radiation detection element integrated card 1 and controls entry / exit of the user 30.

【0058】

An embodiment of the user identification information and the exposure information of the memory area of FIG. 9 will be described. The user ID is a code for uniquely identifying the user 30. The expiration date indicates the expiration date that the user 30 can enter and leave the controlled area. The user classification indicates the qualification when the user 30 enters and leaves the controlled area. The affiliation code is a code for uniquely identifying the affiliation company of the user 30. The exposure information of the user 30 indicates the past exposure record of the user 30. The 1-year dose value indicates the dose value for the past year. The 3-month dose value indicates the dose value for the past 3 months. The monthly dose value indicates the dose value of the previous month. The current month's dose value indicates the current month's dose value. The weekly dose value indicates the dose value for the current week. The dose value on the day indicates the dose value already exposed on the day. The working time on the day indicates the time already worked on the day.

【0059】

The measuring instrument 100 reads the identification information and the exposure information of the user 30 of the radiation detection element integrated card 1 in contact or non-contact. The measuring instrument 100 reads the dose value of the fluorescent material 2 and measures this time for the 1-year dose value, 3-month dose value, 1-month dose value, current-month dose value, weekly dose value, current-day dose value, and current-day working time of the exposure information. Add the results of. Further, the measuring instrument 100 writes the updated exposure information to the radiation detection element integrated card 1 in contact or non-contact.

【0060】

With the above configuration, the entrance / exit management system 130 adopts the actual dose value of the radiation detection element integrated card 1 even when the electronic personal dosimeter 20 fails and the actual dose value cannot be read. The actual dose value in the work concerned can be determined.

【0061】

In addition, the entry / exit management system 130 reads the identification information and exposure information of the user 30 from the radiation detection element integrated card 1 even in offline operation in which the radiation control computer 40 and the entry / exit device 110 are not connected, and performs entry processing. In this case, the planned dose value is calculated by confirming that the current day dose value does not exceed the daily maximum dose value, permitting entry, and subtracting the current day dose value from the daily maximum dose value. In the case of exit processing, the dose value of the day and the dose value of the entry / exit processing are added, and it is confirmed that the addition result does not exceed the maximum dose value of the day, and the exit is permitted. Further, the entry / exit management system 130 writes the exposure information reflecting the actual results of the entry / exit processing into the radiation detection element integrated card 1 in the exit processing.

【0062】

[Effect of the invention]

As described above, according to the present invention, it is possible to provide a radiation detection element integrated card as a backup dosimeter by incorporating OSL into an ID card that the user always carries.

【0063】

A radiation dose reading / writing system that reads and writes the radiation detection element integrated card by combining the radiation detection element integrated card and the measuring instrument, and an entry / exit device equipped with the radiation detection element integrated card and the measuring instrument inside. An exposure management system can be provided by combining with.

[Simple explanation of drawings]

FIG. 1 is a configuration diagram of a card integrated with a radiation detection element according to a first embodiment. FIG. 2 is a diagram showing an embodiment of a memory configuration of a memory area of the memory area of the first embodiment. FIG. 3 is a radiation detection according to the second embodiment. Configuration diagram of the element-integrated card [Fig. 4] Configuration diagram of the radiation detection element-integrated card of the third embodiment [Fig. 5] Fig. 6 is a diagram showing an embodiment of the memory configuration of the memory area of the third embodiment. Configuration diagram of the radiation dose reading / writing system [Fig. 7] Diagram showing an embodiment of user identification information and exposure information of the memory area of the fourth embodiment [Fig. 8] Configuration diagram of the entry / exit management system [Fig. 9] FIG. 10 is a diagram showing an embodiment of user identification information and exposure information in the memory area of the fifth embodiment. [Fig. 10] Configuration diagram of a conventional entry / exit management system [Fig. 11] Memory in the memory area of the conventional IC card 201. FIG. 12 is a diagram showing an embodiment of a configuration. FIG. 12 is a diagram showing an embodiment of a record definition of a database of a conventional radiation control computer [Explanation of reference numerals].

1 Radiation detection element integrated card 2 Fluorescent material 3 Fluorescent material mounting part 4 Radiation detection element integrated card chip 20 Electronic personal dosimeter 30 User 40 Radiation control computer 100 Measuring instrument 110 Entry / exit device 120 Radiation reading / writing system 130 Access control system 200 Conventional measuring instrument 201 IC card 204 IC card chip 210 Conventional entry / exit device 230 Conventional entry / exit management system