Detection and measurement device convenient for radioactive source installation

Abstract

The utility model relates to a detection and measurement device convenient to install a radioactive source, which comprises two detector support frames, a slide rail, a graduated scale and a radioactive source fixing piece, the two detector support frames are oppositely arranged, a gamma detector and a beta detector are respectively arranged on the two detector support frames, and the gamma detector and the beta detector are arranged on the slide rail. The two detector supporting frames are arranged on the sliding rail in a sliding mode and can slide face to face or relatively, the graduated scale is arranged on the front side of the detector supporting frames and measures the spacing distance between the gamma detector and the beta detector, and the radioactive source fixing piece is arranged between the two detector supporting frames and can rotate the radioactive source to the outer portions of the two detectors relative to the sliding rail. At the moment, the radioactive source is arranged on the radioactive source installation groove of the radioactive source fixing frame and rotated to the position between the two detectors, and the radioactive source can be conveniently and efficiently arranged between the two detectors for use.

Description

Technical Field

[0001] This application relates to the technical field of experimental instruments, and particularly to a detection and measurement device for facilitating the installation of a radiation source. Background Art

[0002] In the field of nuclear physics research, the coincidence measurement technique has extensive applications in various fields of nuclear physics experiments. In the study of nuclear reactions, it can be used to determine the energy and angular distribution of reactants; in nuclear decay measurements, it can be used to study the nuclear decay mechanism, angular correlation between cascade radiations, half-life of short-lived radioactive nuclides, etc.; in the field of cosmic ray research, it can be used to measure the observation of cosmic ray shower phenomena. Due to the development of fast electronics, multi-channel analyzers, and multi-parameter analysis systems, as well as the application of electronic computers in nuclear experiments, the coincidence method has become an essential experimental means for realizing multi-parameter measurements. Through this experiment, the basic method of coincidence measurement can be learned and the absolute activity of a radiation source can be determined using the coincidence method. Using two or more different detectors to record two or more simultaneously occurring and mutually related nuclear events is called coincidence measurement. The coincidence measurement technique is a commonly used measurement technique in nuclear physics experiments, and it can be used to measure the energy and angular distribution of particles emitted in reactions. Radioactive activity refers to the number of atoms decayed per second by a radioactive element or isotope, and it is an important radiation quantity used to describe the characteristics of radioactive nuclides. It reflects the nuclear decay rate of radioactive nuclides. The experimental device of this application uses the dual-probe β-γ coincidence measurement method to measure the activity of the 60Co source in the laboratory.

[0003] In the β-γ coincidence method, it is necessary to first place the radiation source between two detectors. Since the radiation source has a small volume, it is inconvenient to place it between two detectors. Utility Model Content

[0004] In view of this, this application proposes a detection and measurement device for facilitating the installation of a radiation source, which can quickly and conveniently place the radiation source between two detectors.

[0005] According to one aspect of this application, there is provided a detection and measurement device for facilitating the installation of a radiation source, including: a detector support frame, there are two of the detector support frames, the two detector support frames are arranged opposite to each other, and a γ detector and a β detector are respectively arranged on the two detector support frames, and the emission direction of the γ detector is directly opposite to the emission direction of the β detector;

[0006] A slide rail, the two detector support frames are slidably arranged on the slide rail, and the two detector support frames can slide towards or away from each other;

[0007] A scale, the scale is arranged on the front side of the detector bracket, and measuring parts are arranged on both of the detector support frames. The measuring parts are in contact with the scale to measure the spacing distance between the γ detector and the β detector;

[0008] A radioactive source fixing member, the radioactive source fixing member is arranged between the two detector support frames, and the radioactive source fixing member includes a mounting part and a fixing part. The fixing part is a columnar structure, vertically located in the middle of the two detector support frames and on one side of the slide rail. The mounting part is a strip-shaped structure, with a through radioactive source installation groove opened in the middle, and the mounting part is rotatably arranged on the top of the fixing part and rotates around the circumferential direction of the fixing part.

[0009] In a possible implementation manner, it further includes: a rotating part;

[0010] A first fixing hole is opened at one end in the length direction of the mounting part, and the fixing hole is located below the radioactive source installation groove;

[0011] A rotating hole is opened at the top of the fixing part, and a second fixing hole is opened at the bottom, and the fixing part is suitable for being fixedly installed on the operating table;

[0012] The rotating part is a columnar structure, one end is embedded and fixedly connected inside the first fixing hole, and the other end is embedded and rotatably connected inside the rotating hole.

[0013] In a possible implementation manner, the cross-section of the rotating part along the direction perpendicular to the circumferential direction is a "convex" - shaped structure.

[0014] In a possible implementation manner, the rotating part includes a fixed end with a smaller cross-section in the length direction and a rotating end with a larger cross-section;

[0015] The cross-section of the fixed end is square, and the cross-section of the rotating end is circular.

[0016] In a possible implementation manner, there are two or more second fixing holes.

[0017] In a possible implementation manner, it is characterized in that it further includes: a movable part;

[0018] The movable part is a plate-shaped structure with a "U" - shaped cross-section, and the movable part covers the upper part of the slide rail and is located at the middle position of the slide rail;

[0019] The radioactive source fixing member is arranged on the top of the movable part and above the slide rail.

[0020] In a possible implementation manner, the fixing part is vertically arranged at the top of the movable part and located on one side of the slide rail;

[0021] The fixing part is bolted to the plate surface of the movable part.

[0022] In a possible implementation manner, the mounting part includes a first mounting part and a second mounting part;

[0023] The first mounting part is in a plate-like structure, and a first radiation source mounting hole is provided on one side in the length direction;

[0024] The second mounting part is a plate-like structure bent at 90 degrees, and a second radiation source mounting hole is provided on one side in the length direction. The first mounting part is arranged inside the second mounting part, is in contact with the second mounting plate, and the first radiation source mounting hole corresponds to the second radiation source hole.

[0025] In a possible implementation manner, the first mounting part is bolted to the second mounting part.

[0026] In a possible implementation manner, it further includes: a limit bolt;

[0027] A first limit hole is provided on the side wall of the fixing part, a second limit hole is provided on the side wall of the rotating end of the rotating part, and when the rotating end of the rotating part is embedded inside the rotating hole of the fixing part, the second limit hole corresponds to the first limit hole, and the limit bolt passes through the first limit hole and the second limit hole.

[0028] The beneficial effects of the detection and measurement device for facilitating the installation of a radiation source in the embodiments of the present application: Before detecting and measuring the radiation source, it is necessary to place the radiation source between two detectors by using a fixing member. Since the two radiation sources are located exactly in the middle between the two detectors, it is difficult to place the radiation source on the fixing member even if the two detectors slide towards each other through the lower slide rail. In the present application, a rotatable radiation source fixing member is provided between the two detectors. When installing the radiation source, the two detectors can first slide towards each other through the slide rail and leave a distance that allows the radiation source fixing member to rotate. Then, the radiation source is rotated relative to the slide rail to the outside of the two detectors. At this time, the radiation source is set on the radiation source installation groove of the radiation source fixing frame and then rotated between the two detectors. In this way, the radiation source can be conveniently and efficiently set between the two detectors for use.

[0029] According to the following detailed description of the exemplary embodiments with reference to the accompanying drawings, other features and aspects of the present application will become clear. Description of the Drawings

[0030] The drawings included in and forming a part of the specification illustrate exemplary embodiments, features, and aspects of the present application together with the specification, and are used to explain the principles of the present application.

[0031] Figure 1 Schematic diagram of a detection and measurement device facilitating the installation of a radiation source according to an embodiment of the present application;

[0032] Figure 2 Exploded view of a detection and measurement device facilitating the installation of a radiation source according to an embodiment of the present application;

[0033] Figure 3 Schematic diagram of a radiation source fixing bracket of a detection and measurement device facilitating the installation of a radiation source according to an embodiment of the present application. Detailed Description of the Invention

[0034] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0035] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0037] The special term "exemplary" herein means "serving as an example, embodiment, or illustration". Any embodiment described herein as "exemplary" should not be construed as being superior to or better than other embodiments.

[0038] In addition, for a better illustration of the present application, numerous specific details are given in the following detailed implementation manners. Those skilled in the art should understand that the present application can still be implemented without some specific details. In some instances, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0039] Referring to Figure 1 、 Figure 2 and Figure 3 FIGs., the detection and measurement device for facilitating the installation of a radiation source according to an embodiment of the present application includes: a detector support frame 200, a slide rail 400, a scale 500500, and a radiation source fixing member 800. There are two detector support frames 200, and the two detector support frames 200 are arranged oppositely. A gamma detector and a beta detector are respectively arranged on the two detector support frames 200. The emission direction of the gamma detector is directly opposite to the emission direction of the beta detector. The two detector support frames 200 are slidably arranged on the slide rail 400, and the two detector support frames 200 can slide towards or away from each other. The scale 500500 is arranged on the front side of the detector support frame 200, and a measuring member 900 is arranged on both detector support frames 200. The measuring member 900 abuts against the scale 500500 to measure the spacing distance between the gamma detector and the beta detector. The radiation source fixing member 800 is arranged between the two detector support frames 200, and the radiation source fixing member 800 includes an installation part 810 and a fixing part 820. The fixing part 820 is a columnar structure, vertically located in the middle of the two detector support frames 200 and on one side of the slide rail 400. The installation part 810 is a strip-shaped structure, and a through radiation source installation groove 811 is formed in the middle. The installation part 810 is rotatably arranged on the top of the fixing part 820 and rotates around the circumferential direction of the fixing part 820.

[0040] In this embodiment, before detecting and measuring the radiation source, it is necessary to place the radiation source between the two detectors by using a fixing member. Since the two radiation sources are located at the exact middle position between the two detectors, it is difficult to place the radiation source on the fixing member even if the two detectors slide towards each other through the lower slide rail 400. The present application provides a rotatable radiation source fixing member 800 between the two detectors. When installing the radiation source, the two detectors can be first slid towards each other through the slide rail 400 with a distance that allows the radiation source fixing member 800 to rotate. Then, the radiation source is rotated relative to the slide rail 400 to the outside of the two detectors. At this time, the radiation source is set in the radiation source installation groove 811 of the radiation source fixing frame and rotated to between the two detectors. In this way, the radiation source can be conveniently and efficiently set between the two detectors for use.

[0041] In a specific embodiment, the detection source fixing bracket further includes: a rotating part 840. One end of the installation part 810 in the length direction is provided with a first fixing hole 812, and the fixing hole is located below the radiation source installation groove 811. A rotating hole 821 is provided at the top of the fixing part 820, and a second fixing hole is provided at the bottom. The fixing part 820 is suitable for being fixedly installed on the operating table. The rotating part 840 is of a columnar structure. One end is embedded and fixedly connected inside the first fixing hole 812, and the other end is embedded and rotatably connected inside the rotating hole 821. In this way, one end of the rotating part 840 is embedded and fixedly connected to the first fixing hole 812 at the bottom of the installation part 810, and the other end is embedded inside the rotating hole 821 at the top of the fixing part 820, so that the installation part 810 can rotate relative to the fixing part 820.

[0042] Among them, the strip-shaped installation part 810 is vertically arranged with the strip-shaped fixing part 820.

[0043] In this embodiment, the cross-section of the rotating part 840 along the vertical circumferential direction is of a "convex" shape structure, which can enable both ends of the rotating part 840 to be respectively embedded in appropriate slots.

[0044] Specifically, in this embodiment, the rotating part 840 includes a fixed end with a smaller cross-section in the length direction and a rotating end with a larger cross-section. The cross-section of the fixed end is square, and the cross-section of the rotating end is circular. The first fixing hole 812 is a square hole matching the fixed end, and the rotating hole 821 is a circular hole matching the rotating end. In this way, when the fixed end of the rotating part 840 is embedded inside the first fixing hole 812, it can be fixed in the circumferential direction relative to the rotating part 840. When the rotating end of the rotating part 840 is embedded inside the rotating hole 821, it can rotate in the circumferential direction relative to the rotating part 840, so that the installation part 810 can rotate in the circumferential direction relative to the fixing part 820.

[0045] In a specific embodiment, there are two or more second fixing holes for fixing on the plate surface of the operating table.

[0046] In a specific embodiment, it further includes: a movable part. The movable part is a plate-shaped structure with a cross-section in the shape of a "U", and the movable part covers the upper part of the slide rail 400 and is located in the middle position of the slide rail 400. The radiation source fixing part 800 is arranged on the top of the movable part and above the slide rail 400. In this way, the radiation fixing part can be arranged above the slide rail 400 and does not directly contact the slide rail 400, so that the setting of the radiation source fixing part 800 will not affect the use of the slide rail 400.

[0047] In this embodiment, the fixing part 820 is vertically arranged on the top of the movable part and on one side of the slide rail 400. The fixing part 820 is bolted to the plate surface of the movable part through the second fixing hole opened at the bottom.

[0048] In a specific embodiment, the installation part 810 includes a first installation part 810 and a second installation part 810. The first installation part 810 is in a plate-like structure, and a first radiation source installation hole is provided on one side in the length direction. The second installation part 810 is a plate-like structure bent at 90 degrees, and a second radiation source installation hole is provided on one side in the length direction. Moreover, the first installation part 810 is arranged inside the second installation part 810, is in contact with the second installation plate, and the first radiation source installation hole corresponds to the second radiation source hole, forming a radiation source installation groove 811 for placing the radiation source.

[0049] In this embodiment, the first installation part 810 is bolted to the second installation part 810.

[0050] In a specific embodiment, it further includes: a limit bolt 830. A first limit hole is formed in the side wall of the fixed part 820, and a second limit hole is formed in the side wall of the rotating end of the rotating part 840. When the rotating end of the rotating part 840 is embedded inside the rotating hole 821 of the fixed part 820, the second limit hole corresponds to the first limit hole, and the limit bolt 830 passes through the first limit hole and the second limit hole. In this way, after the radiation source is placed inside the radiation source installation groove 811 of the radiation source fixing member, and the installation part 810 of the radiation source fixing member 800 rotates between the two detectors, the first limit hole corresponds to the second limit hole. At this time, the limit bolt 830 is sequentially passed through the first limit hole and the second limit hole to fix the installation part 810, the rotating part 840 and the fixed part 820 of the radiation source fixing frame, which is convenient for subsequent tests.

[0051] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application or the improvement of the technology in the market, or to enable other ordinary technical personnel in the technical field to understand the embodiments disclosed herein.

Claims

1. A detection and measurement device for facilitating the installation of a radiation source, characterized in that Comprising: Detector support frames, there are two detector support frames, the two detector support frames are arranged oppositely, and a γ detector and a β detector are respectively arranged on the two detector support frames, and the emission direction of the γ detector is directly opposite to the emission direction of the β detector; Slide rail, the two detector support frames are slidably arranged on the slide rail, and the two detector support frames can slide towards each other or away from each other; Scale, the scale is arranged on the front side of the detector support, and measuring parts are arranged on both detector support frames, the measuring parts are in contact with the scale to measure the spacing distance between the γ detector and the β detector; Radioactive source fixing part, the radioactive source fixing part is arranged between the two detector support frames, and the radioactive source fixing part includes an installation part and a fixing part, the fixing part is a columnar structure, vertically located in the middle of the two detector support frames and on one side of the slide rail, the installation part is a strip-shaped structure, a through radioactive source installation groove is opened in the middle, and the installation part is rotatably arranged on the top of the fixing part and rotates around the circumferential direction of the fixing part.

2. The detection and measurement device for facilitating the installation of a radiation source according to claim 1, characterized in that, Further comprising: Rotating part; A first fixing hole is opened at one end in the length direction of the installation part, and the fixing hole is located below the radioactive source installation groove; A rotating hole is opened at the top of the fixing part, and a second fixing hole is opened at the bottom, and the fixing part is suitable for being fixedly installed on the operating table; The rotating part is a columnar structure, one end is embedded and fixedly connected inside the first fixing hole, and the other end is embedded and rotatably connected inside the rotating hole.

3. The detection and measurement device for facilitating the installation of a radiation source according to claim 2, wherein, The cross-section of the rotating part along the direction perpendicular to the circumferential direction is in a "convex" shape structure.

4. The detection and measurement device for facilitating the installation of a radiation source according to claim 3, wherein, The rotating part includes a fixed end with a smaller cross-section in the length direction and a rotating end with a larger cross-section; The cross-section of the fixed end is square, and the cross-section of the rotating end is circular.

5. The detection and measurement device for facilitating the installation of a radiation source according to any one of claims 1-4, characterized in that, There are more than two second fixing holes.

6. The detection and measurement device for facilitating the installation of a radiation source according to any one of claims 1-4, characterized in that, Further comprising: Movable part; The movable part is a plate-like structure with a cross-section in a "U" shape, and the movable part covers the upper part of the slide rail and is located at the middle position of the slide rail; The radioactive source fixing part is arranged on the top of the movable part and above the slide rail.

7. The detection and measurement device for facilitating the installation of a radiation source according to claim 6, wherein The fixing part is vertically arranged on the top of the movable part and on one side of the slide rail; The fixing part is bolted to the plate surface of the movable part.

8. The detection and measurement device for facilitating the installation of a radiation source according to claim 1, wherein The installation part includes a first installation part and a second installation part; The first installation part is in a plate-like structure, and a first radioactive source installation hole is provided on one side in the length direction; The second installation part is a plate-like structure bent at 90 degrees, and a second radioactive source installation hole is provided on one side in the length direction, and the first installation part is arranged inside the second installation part and is in contact with the second installation plate, and the first radioactive source installation hole corresponds to the second radioactive source hole.

9. The detection and measurement device for facilitating the installation of a radiation source according to claim 8, wherein, The first installation part is bolted to the second installation part.

10. The detection and measurement device for facilitating the installation of a radiation source according to any one of claims 1-4, characterized in that, Further comprising: Limit bolt; The side wall of the fixed part is provided with a first limiting hole, the side wall of the rotating end of the rotating part is provided with a second limiting hole, and when the rotating end of the rotating part is embedded in the rotating hole of the fixed part, the second limiting hole corresponds to the first limiting hole, and the limiting bolt passes through the first limiting hole and the second limiting hole.

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