JPS60262095A - Automatic storage system of radioactive substance - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to radioactive substances, particularly radioisotopes (hereinafter referred to as
This invention relates to an automatic storage system for radioactive materials that automatically takes in and out (referred to as R1) by mechanical means. .

[Background technology]

Radioactive substances, especially R1, are widely used in various medical fields, but their management is strictly regulated by the Act on the Prevention of Radiation Hazards Due to R, etc. 4 and related laws and regulations.

For this reason, operations related to purchasing, using, and inventory management of R1 have become complicated, and recently, RI storage systems using computers have been used for these operations. However, in these R1 storage systems, when R1 is purchased, the R1 receiver is inserted, and when R and I are taken out when R1 is used, the type of R1 that is actually put in and taken out of the storage due to errors in recording on the computer or forgetting to record, etc. It may happen that the amount of data recorded on the computer differs from the data recorded on the computer, or that the data is not recorded at all. In this case, R1 that is not recorded in the computer may be in storage,
There is a risk that R1, which is supposed to be in stock, may be gone.

Furthermore, the conventionally used R1 storage is simply storing RT in a room or box surrounded by a radiation protection wall, and R1 can be taken in and out of the room or box directly by hand. workers may be exposed to unnecessary radiation exposure.

C. Purpose of the Invention The purpose of the present invention is to eliminate the drawbacks of the conventional automatic storage systems for radioactive materials as described above, and to provide an automatic storage system for radioactive materials that is accurate in management and safe.

[Disclosure of the invention]

In order to achieve the above object, the radioactive material automatic storage system according to the present invention includes a shelf that can store a plurality of containers containing radioactive materials, a transport mechanism that transports the containers, and a system that allows the containers to be taken in and out. a radiation protection wall that covers the shelf and the transport mechanism by providing a space necessary for the transport mechanism to transport the containers between the shelf and the window; A control record/display device is electrically connected to control the transport mechanism, and records and displays inventory data of radioactive materials taken in and taken out by the operation of the transport mechanism. The mechanism is characterized in that the mechanism selects a specified container from the shelf and places it at the window, and transports the container placed at the window to a designated position on the shelf and stores it. do.

Next, one embodiment of the present invention will be explained in detail based on the accompanying drawings. FIG. 1 is a block diagram of an automatic radioactive material storage system according to the present invention. As shown in the figure, this system is broadly divided into automatic storage 1.
and a control recording/displaying device 2 electrically connected thereto. Then, ζ, the automatic storage 1 includes a shelf with a door 3 for storing the container containing R1. The control record display device 2 includes a transportation robot 4 for transporting the container, the shelf 3, and a radiation protection wall 5 that covers the entire transportation robot 4. The control record display device 2 includes a central processing unit 6 and a storage device 7 connected thereto. Keybonide 8. CRT display device9. Printer device 1
0. It consists of a drive device 11. This drive device 11 includes a transport robot 4 of an automatic storage 1 and a door opening/closing control device 1 for a shelf 3.
It is electrically connected to 2.

FIG. 2 is an external view of the automatic storage 1. As shown in the figure, the radiation protection wall 5 has a window 13 on its front surface through which one of the containers can be taken in and taken out, and a stand 14 on which to temporarily place the container when taking it in and out from the window 13. We are prepared.

FIG. 3 is an external view of the automatic storage 1 when the front part is opened. As shown in the figure, the shelf 3 has four levels, top and bottom, and each level is divided into five sections, each of which can accommodate a container 24 for containing R1. A heat insulating door 15 is provided at the front of each stage, and FIG. 3 shows the door 15 of the fourth stage opened from the top. The door 15 of each stage of the shelf 3 is provided with a drive mechanism for mechanically opening and closing the door. In the figure, this drive mechanism consists of a link 16 and a prime mover 17 that does not move it.

Door opening/closing control device 12 provided on the side of the radiation protection wall 5
receives a command from the drive device If, and operates the prime mover 17 of each stage.
is driven to open and close the door 15. The transport μ robot 4 is guided by a rail 19 laid along the front surface of the shelf 3 by the action of a self-propelled machine 18 and moves left and right. Further, by the action of the lifting/lowering rotary machine 20, it moves up and down along the pole 21 erected between the upper and lower rails 19, 19, and also rotates. Further, it moves back and forth on the platform 22 protruding from the lifting/lowering rotation ta20, and opens and closes its two arms 23°23 to grasp or release the container 24. The transportation robot 4 receives instructions from the drive device 11 and performs the above operations. The radiation protection wall 5 provides a space between the shelves 3 and 3 that allows the transportation robot 4 to perform such operations.
and counter 13.

The method of using this radioactive material automatic storage system is as follows. Now, the R1 handler, from automatic storage 1,
Suppose we want to extract a certain R1.

First, via the keyboard 8, an inquiry is made to the central processing unit 6 about the stock status of R1 to be taken out. Central processing unit 6
reads the inventory data of R1 from the storage device 7,
This is displayed on the cathode ray tube display device 9 or printed on the printer 10. The R1 handler reads the displayed or printed inventory data and selects the necessary R1.
If it is found that R1 is stored in excess of the required amount, then the central processing unit 6 is notified of the required amount of R1 and the retrieval request via the keyboard 8 again. If the required amount of R1 is not greater than the storage amount, the central processing unit 6 reads from the storage device 7 in which container R1 is placed on which stage of the shelf 3 and at which position. Assume that the container is, for example, the container 24 stored at the left end position of the fourth shelf from the top in FIG. Then, the central processing unit 6 next sends a command to the drive device Y1 to take out the container 24 from the automatic storage 1. The drive device 11 drives the transportation robot 4 and the door opening/closing control device 12 in the following order at appropriate timing.
control. That is, first, move the self-propelled machine 18 to the rail 19.
, and stop at the leftmost container storage position on the shelf 3. Next, move the lifting rotary machine 20 to the pole 21.
It is lowered along the shelf 3A and stopped at the fourth stage from the top of the shelf 3A. On the other hand, the central processing unit 6 also drives the prime mover 17 of that stage via the door opening/closing control device 12 to open the door 15. Then, the platform 22 of the transport robot 4 is directed toward the shelf 3, the transport robot 4 is moved forward to grab the designated container 24 with its arm 23.23, and then moved backward to pick up the container 24. It is taken out from shelf 3. When the container 24 is removed, the door 18 is closed. Next, have the self-propelled machine 18 move to the right so that the elevator rotating machine 2o is in front of the counter 13, and then raise and rotate the elevator rotating machine 2° so that the platform 22 is in the direction of the counter 13. Then, move the transport robot 4 forward to make the container 24 it is gripping stick out from the window 13, open the arms 23°23, and place the container 24 on the stand 14.
After placing it on top, it is moved back. This results in
The RI operator can take out the required amount of R1 from this container 24 and use it. On the other hand, the central processing unit 6 corrects the retrieved inventory data of R1 and stores it in the storage device 7.
write to. In this way, the R1 retrieval procedure is completed.

The above is the procedure for taking out the R1, but it is almost the same when storing the R1. First, place the container 24 of the R1 to be stored on the stand 14, and then select the type of R1 to be stored from the keyboard 8. , sends the quantity and storage request to the central processing unit 6. Then, the central processing unit 6 selects an appropriate storage position on the shelf 3 and sends a command to the drive device 11. The drive device 11 then controls the transport robot 4 and the door opening/closing control device 12 in the reverse order of the container removal described above to store the container in the selected and designated position. Then, the central processing unit 6 creates new inventory data regarding the stored R2 or modifies it and writes it into the storage device 7, completing the R1 storage procedure.

It goes without saying that the transportation robot 4 may operate in ways other than those described above.

(R) If the transport mechanism is made inoperative unless the necessary data is recorded every hour when containers are taken in and out, errors in recording or forgetting to record on the computer can be reliably prevented.

In the above embodiment, each shelf 3 has a temperature control device (not shown), and when the door 15 is closed, the inside is insulated from the surroundings and kept at a constant temperature. Depending on the type, R1'' needs to be stored at a certain temperature range. Therefore, conventionally, several refrigerators and the like having different internal temperatures were placed in a storage room, and R1 was stored in them. Therefore, the required R1
It was a hassle to find and store them. That point,
As in this example, if the shelves in the automatic storage are divided into several areas with different temperatures and each is equipped with an insulated door that can be opened and closed automatically, R1 can be stored at the optimal temperature without any hassle. can.

The container transport mechanism is not limited to the robot 4 described above, and various known mechanisms may be employed.

〔Effect of the invention〕

As is clear from the above explanation, the radioactive material automatic storage system according to the present invention is capable of actually taking out and storing R1, etc., recording the usage amount, and correcting inventory data.
It is also possible to make it so that the transport mechanism does not operate unless it is done at the same time in relation to the transport mechanism, so this will effectively prevent forgetting to record data on the computer, and will keep track of the actual storage contents and inventory data. It is possible to prevent discrepancies from occurring.

In addition, unlike in conventional storage systems, there is no need for the person handling the RI to enter the radioactive material storage facility and search for the necessary container for the RI, etc., thereby reducing unnecessary radiation exposure. It is possible to prevent the user from being exposed to such damage, and to save extra space for the operator to enter and exit.

As described above, this invention eliminates the drawbacks of conventional radioactive material automatic storage systems and is easy to manage.

It is possible to provide an accurate and safe automatic storage system for radioactive materials.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the automatic storage system for radioactive materials according to the present invention, FIG. 2 is an external view of automatic storage 1, and FIG. 3 is an external view of automatic storage 1 when the front part is opened. . 2...Control record display device 3...Shelf 4...Transportation robot 5...Radiation protection wall 13...Counter
14... Unit 24... Container agent Patent attorney Takehiko Matsumoto Figure 2

Claims (1)

[Claims] (11) A shelf that can store multiple containers containing radioactive materials, a transport mechanism that transports the containers, and a window that allows the containers to be taken in and out, and the transport mechanism is located between the shelf and the window. A space necessary for transporting the containers is provided, and a radiation protection wall covering the shelf, the transport mechanism, and the structure is electrically connected to the transport structure to control the transport mechanism and transport the container. A control record/display device is provided for recording and displaying inventory data of radioactive substances taken in and taken out by the operation, and in response to a command from the control record display device, the transport mechanism selects a designated container from the shelf and carries it out. An automatic radioactive substance storage system configured to place a container at a counter, and transport and store the container placed at the counter at a designated position on the shelf.