Radioactive source code identification system

Abstract

The radioactive source code identification system comprises a camera system, a signal line, a hard disk video recorder and a display, wherein the camera system is composed of a telescopic rod, a rear sealing end cover, a stainless steel shell, an optical zoom camera, an LED light supplement lamp and lead-containing anti-radiation glass; the lead-containing anti-radiation glass is arranged at the front end part of the stainless steel shell in a sealing manner; the camera is fixedly arranged in a sealing cavity in the stainless steel shell; by means of the structure, when the radioactive source under the source storage well is observed, the distance between the camera and the radioactive source can be adjusted, or the focal length of the camera can be adjusted through the hard disk video recorder, the LED light supplementing lamp can be turned on through the hard disk video recorder for illumination, the LED light supplementing lamp can be adjusted to the proper brightness, and therefore clearer radioactive source coded images can be obtained.

Description

Technical Field

[0001] The utility model relates to a coding identification system, in particular to an identification system for identifying a radioactive source code of a cobalt source irradiation device placed at the bottom of a source storage well. Background Art

[0002] The irradiation device uses a radioactive source. When working, the radioactive source is lifted into the irradiation room. When not working, the radioactive source is lowered to the bottom of the storage well for storage, more than 4 meters away from the well surface. The well is filled with deionized water to shield radiation. The shell of the radioactive source is made of stainless steel, and a code is engraved on the end of the stainless steel. The code diameter is about 1 cm, and the code of each radioactive source is different. Every customer needs to identify the code when purchasing or decommissioning a radioactive source, because the code is very small, the well water is very deep, and although the well water is clear, the code cannot be seen with the naked eye on the water surface, which greatly affects work efficiency.

[0003] In the prior art, a camera is usually used to go deep into the reservoir well, and the camera is used to get close to the radiation source. Then the image signal of the camera is transmitted to the display device to obtain a coded image that identifies the radiation source. However, the reservoir well is a radioactive environment, and the water depth is deep, the water pressure is high, and the light is insufficient. Therefore, the image obtained by the camera often has more noise and lower clarity. Moreover, after a period of use, the camera will also be damaged due to the damage of the radioactive and water pressure environment. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to solve the related technical problems in the above-mentioned prior art, the utility model provides a radioactive source coding identification system, which is intended to clearly identify the coding of the radioactive source in the reservoir well, while ensuring the service life of the identification system.

[0006] (II) Technical solution

[0007] In order to achieve the purpose of this utility model, the utility model adopts the following technical solutions:

[0008] The structure of the utility model:

[0009] The radioactive source coding identification system comprises a camera system, a signal line, a display and a hard disk recorder. The camera system consists of a telescopic rod, a rear sealed end cover, a stainless steel shell, a camera head and lead-containing radiation-proof glass; the stainless steel shell is cylindrical, and the lead-containing radiation-proof glass is sealed at the front end of the stainless steel shell, thereby forming a first sealed cavity in the stainless steel shell, and the camera head is fixedly arranged in the first sealed cavity; a flange is arranged at the rear end of the stainless steel shell, and the rear sealed end cover is sealed and fixedly connected to the flange by a plurality of bolts, one end of the signal line is sealed and led out from the rear sealed end cover, and the other end is connected to the hard disk recorder; the telescopic rod is fixedly connected to the rear sealed end cover.

[0010] Furthermore, a radiation shielding layer is nested in the stainless steel housing, and the radiation shielding layer is a cylindrical structure made of lead-tungsten alloy; the rear sealing end cover is made of lead-tungsten alloy; the signal line is a radiation-proof signal line; and the telescopic rod is made of stainless steel. The radiation shielding layer may not be provided, but it will affect the service life of the camera.

[0011] Furthermore, the lens of the camera is fixedly disposed close to the lead-containing radiation-proof glass.

[0012] Furthermore, the first sealed chamber is filled with an inert gas, and the inert gas is argon gas or ordinary air.

[0013] Furthermore, the camera is an optical zoom camera, and the focal length of the camera can be adjusted through the hard disk recorder.

[0014] Furthermore, a plurality of LED fill lights are arranged around the camera, and the brightness of the LED fill lights can be adjusted through the hard disk recorder.

[0015] The working principle of this utility model:

[0016] When the radioactive source is stored at the bottom of the well and needs to be identified and coded, extend the camera system above the radioactive source in the storage well, and check the code of the radioactive source through the hard disk recorder on the side of the well. If the image is not clear due to inappropriate distance, the distance from the camera to the radioactive source can be adjusted by adjusting the length of the telescopic rod, or the image clarity can be adjusted by adjusting the focal length of the camera through the hard disk recorder. The monitor is connected to the hard disk recorder to display the picture. If the light is dim and the code cannot be identified, the LED fill light can be turned on through the hard disk recorder for lighting, and the LED fill light can be adjusted to the appropriate brightness until the coded image is clear.

[0017] (III) Technical Effect

[0018] Compared with the prior art, the radiation source coding identification system of the utility model has the following beneficial and significant technical effects:

[0019] (1) By using a radiation source code identification system, when the radiation source is in a shielded state at the bottom of the source storage well, the code can be clearly seen through the image transmitted to the display by the camera, without causing radiation damage to personnel.

[0020] (2) The radiation source code identification system has a telescopic rod and an LED fill light, and the camera is an optical zoom camera. The distance from the camera to the radiation source can be adjusted through the above structure, or the focal length of the camera can be adjusted through a hard disk recorder. The LED fill light can also be turned on through the hard disk recorder for lighting, and the LED fill light can be adjusted to an appropriate brightness, so as to obtain a clearer radiation source code image.

[0021] (3) The front of the camera is made of lead-containing radiation-proof glass, and a radiation-proof shielding layer made of lead-tungsten alloy is nested in the stainless steel shell. The rear sealing end cover is made of lead-tungsten alloy, which can form a full range of radiation protection for the camera, greatly increasing the working stability and service life of the camera. In addition, the chamber inside the stainless steel shell is filled with argon gas to form a positive pressure, which can improve the sealing performance of the camera system and prevent the camera or the lead-containing radiation-proof glass from generating water mist, which affects the image clarity. If there is no radiation-proof shielding layer and ordinary air is filled, the effect will be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the radiation source coding identification system of the utility model.

[0023] Description of reference numerals:

[0024] 1. Camera system 2. Stainless steel housing 3. Camera 4. Lead glass 5. Telescopic rod 6. Signal line 7. Display 8. Hard disk recorder 9. Rear sealed end cap. DETAILED DESCRIPTION

[0025] In order to better understand the present utility model, the content of the present utility model is further explained in conjunction with the embodiments below. In the accompanying drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present utility model, not all of them. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present utility model, and should not be understood as limitations on the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model. The structure and technical solution of the present utility model are further described in detail below in conjunction with the accompanying drawings, and an embodiment of the present utility model is given.

[0026] Example 1

[0027] like Figure 1 As shown, the radiation source coding identification system includes a camera system 1, a signal line 6, a display 7 and a hard disk recorder 8. The camera system 1 is composed of a telescopic rod 5, a rear sealed end cover 9, a stainless steel shell 2, a camera head 3 and a lead-containing radiation-proof glass 4; the stainless steel shell 2 is cylindrical, and the lead-containing radiation-proof glass 4 is sealed and arranged at the front end of the stainless steel shell 2, so as to form a first sealed cavity in the stainless steel shell 2, and the camera head 3 is fixedly arranged in the first sealed cavity; a flange is arranged at the rear end of the stainless steel shell 2, and the rear sealed end cover 9 is sealed and fixedly connected to the flange by a plurality of bolts, one end of the signal line 6 is sealed and led out from the rear sealed end cover, and the other end is connected to the hard disk recorder, and then connected to the display 7; the telescopic rod 5 is fixedly connected to the rear sealed end cover 9.

[0028] When the radioactive source is stored at the bottom of the well and needs to be identified and coded, the camera system is extended above the radioactive source in the well, and the code of the radioactive source is viewed on the display on the side of the well. If the image is not clear due to inappropriate distance, the distance from the camera to the radioactive source can be adjusted by adjusting the length of the telescopic rod to make the coded image clear.

[0029] Example 2

[0030] On the basis of Example 1, as a preferred example of the present invention:

[0031] The radioactive source coding identification system comprises a camera system 1, a signal line 6, a display 7 and a hard disk recorder 8. The camera system 1 is composed of a telescopic rod 5, a rear sealed end cover 9, a stainless steel shell 2, a camera head 3 and a lead-containing radiation-proof glass 4; the stainless steel shell 2 is cylindrical, and the lead-containing radiation-proof glass 4 is sealed and arranged at the front end of the stainless steel shell 2, thereby forming a first sealed cavity in the stainless steel shell 2, and the camera head 3 is fixedly arranged in the first sealed cavity; a flange is arranged at the rear end of the stainless steel shell 2, and the rear sealed end cover 9 is sealed and fixedly connected to the flange by a plurality of bolts, one end of the signal line 6 is sealed and led out from the rear sealed end cover 9, and the other end is connected to the hard disk recorder 8; the telescopic rod 5 is fixedly connected to the rear sealed end cover.

[0032] Among them, a radiation shielding layer is nested in the stainless steel shell 2, and the radiation shielding layer is a cylindrical structure made of lead-tungsten alloy; the rear sealing end cover 9 is made of lead-tungsten alloy; the signal line 6 is a radiation-proof signal line; and the telescopic rod 5 is made of stainless steel. The lens of the camera 3 is fixedly set close to the lead-containing radiation-proof glass 4. The first sealed chamber is filled with argon gas. The camera 3 is an optical zoom camera, and the focal length of the camera 3 can be adjusted by the hard disk recorder 8. A number of LED fill lights are also arranged around the camera 3, and the brightness of the LED fill lights can be adjusted by the hard disk recorder 8.

[0033] If the image is not clear due to inappropriate distance, the image clarity can be adjusted by adjusting the focal length of the camera through the hard disk recorder 8. If the code cannot be recognized due to dim light, the LED fill light can be turned on by the hard disk recorder 8 for illumination, and the LED fill light can be adjusted to a suitable brightness until the coded image is clear.

[0034] Through the above embodiments, the purpose of the utility model is fully and effectively achieved. Those skilled in the art can understand that the utility model includes but is not limited to the contents described in the drawings and the above specific embodiments. Although the utility model has been described with respect to the most practical and preferred embodiments currently considered, it should be understood that the utility model is not limited to the disclosed embodiments, and any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A radioactive source coding identification system, characterized in that: The invention comprises a camera system (1), a signal line (6), a display (7) and a hard disk video recorder (8), wherein the camera system (1) comprises a telescopic rod (5), a rear sealing end cover (9), a stainless steel housing (2), a camera head (3) and a lead-containing radiation-proof glass (4); the stainless steel housing (2) is cylindrical, the lead-containing radiation-proof glass (4) is sealed and arranged at the front end of the stainless steel housing (2), thereby forming a first sealed cavity in the stainless steel housing (2), and the camera head (3) is fixedly arranged in the first sealed cavity; a flange is arranged at the rear end of the stainless steel housing (2), the rear sealing end cover (9) is sealed and fixedly connected to the flange by a plurality of bolts, one end of the signal line (6) is sealed and led out from the rear sealing end cover, and the other end is connected to the hard disk video recorder (8), and then connected to the display (7); the telescopic rod (5) is fixedly connected to the rear sealing end cover.

2. The radiation source coding identification system according to claim 1, characterized in that: The stainless steel housing (2) is also provided with an anti-radiation shielding layer nested therein, the anti-radiation shielding layer being a cylindrical structure made of a lead-tungsten alloy; the rear sealing end cover (9) is made of a lead-tungsten alloy; the signal line (6) is a radiation-proof signal line; and the telescopic rod (5) is made of a stainless steel material.

3. The radiation source coding identification system according to claim 1, characterized in that: The lens of the camera (3) is fixedly arranged in close contact with the lead-containing radiation-proof glass (4).

4. The radiation source coding identification system according to claim 1, characterized in that: The first sealed chamber is filled with an inert gas, which is argon.

5. The radiation source coding identification system according to claim 1, characterized in that: The camera (3) is an optical zoom camera, and the focal length of the camera (3) can be adjusted via the hard disk video recorder (8).

6. The radiation source coding identification system according to claim 1, characterized in that: A plurality of LED fill lights are also arranged around the camera (3), and the brightness of the LED fill lights can be adjusted through the hard disk video recorder (8).

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