CN111999761A - Gamma spectrometer shielding device - Google Patents

Gamma spectrometer shielding device Download PDF

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Publication number
CN111999761A
CN111999761A CN202011046983.4A CN202011046983A CN111999761A CN 111999761 A CN111999761 A CN 111999761A CN 202011046983 A CN202011046983 A CN 202011046983A CN 111999761 A CN111999761 A CN 111999761A
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CN
China
Prior art keywords
placing
hole groove
hole
groove
shielding device
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Pending
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CN202011046983.4A
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Chinese (zh)
Inventor
肖玉琴
亢锐
赵力军
阿不都莫明·卡地尔
阿米娜·卡德尔
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XINJIANG UYGUR AUTONOMOUS REGION INSTITUTE OF MEASUREMENT AND TESTING
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XINJIANG UYGUR AUTONOMOUS REGION INSTITUTE OF MEASUREMENT AND TESTING
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Priority to CN202011046983.4A priority Critical patent/CN111999761A/en
Publication of CN111999761A publication Critical patent/CN111999761A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/36—Measuring spectral distribution of X-rays or of nuclear radiation spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Measurement Of Radiation (AREA)

Abstract

The invention discloses a gamma spectrometer shielding device, relates to the technical field of nuclear physical detection, and mainly aims to provide a gamma spectrometer shielding device capable of replacing a radioactive source without opening a cover body. The main technical scheme of the invention is as follows: a gamma spectrometer shielding device comprising: the shell is provided with a first cavity and used for placing the detector; the cover body is rotationally connected with the shell and provided with a first hole groove and a second hole groove, the first hole groove transversely penetrates through the cover body, the second hole groove is arranged in the middle of the cover body, one end of the second hole groove is communicated with the first cavity, and the other end of the second hole groove is communicated with the first hole groove; the middle part of the sliding component is provided with a plurality of placing hole grooves, each placing hole groove is provided with a placing platform used for placing a radioactive source, and the sliding component can be inserted into the first hole groove. The invention is mainly used for detecting the radioactivity of the tested sample.

Description

Gamma spectrometer shielding device
Technical Field
The invention relates to the technical field of nuclear physics detection, in particular to a gamma spectrometer shielding device.
Background
In the field of nuclear technology, gamma spectrometry is a group of methods for measuring gamma rays of radioactive elements of rocks or strata and other media with a gamma spectrometer at a specific energy so as to determine the content of the radioactive elements. The transmission experiment mainly determines the attenuation capacity of an unknown sample to gamma rays with different energies by measuring the attenuation degree of the unknown sample to gamma rays emitted by an external radioactive source, so that the attenuation capacity of the sample to gamma rays emitted by nuclides contained in the sample can be known, and the self-absorption of a source sample is further corrected. An existing gamma spectrometer generally includes a lead chamber made of lead material, a detector is placed in the lead chamber, and then a sample to be detected is placed on the detector for measurement. When a transmission experiment is performed, because some point sources with high activity or emitting a plurality of gamma rays cannot be too close to a detector, and a radioactive source cannot be directly contacted with a sample to be detected, a bracket collimator is usually arranged at the upper part of the detector, and the radioactive source is placed in a lead collimator, so that the radioactive rays generated by the radioactive source irradiate on the sample to be detected, and the detector detects the sample to be detected.
The existing gamma spectrometer is provided with a hole groove on a cover body, the hole groove penetrates through the shielding cover body and is positioned at the upper part of an end face, the hole groove comprises a penetrating hole and an object placing hole, the penetrating hole is arranged at one end close to a detector, a sealing plug is detachably arranged in the hole groove, the object placing hole is arranged at the upper part of the penetrating hole, an object placing table is arranged between the object placing hole and the penetrating hole, a radioactive source can be placed on the object placing table, so that radioactive rays generated by the radioactive source can irradiate on a sample to be detected through the penetrating hole, the object placing hole is sealed through the sealing plug, the technical effect of conveniently detecting the sample to be detected is achieved, however, in the using process, the radioactive sources release different rays, therefore, different radioactive sources need to be replaced, in the operation of replacing the radioactive sources, the sealing plug needs to be opened first, then the radioactive sources are taken out, at this time, the detector and the sample to be exposed in the air, on the one hand, support and external environment can exert an influence to the testing result of detector to lead to the data that the detector detected to be inaccurate, on the other hand, can lead to the radiant quantity that measurement personnel received great, thereby cause the radiation injury to measurement personnel, if adopt the mode of closing the detector, can avoid measurement personnel to receive the radiation, but can increase the time that detects, thereby reduce work efficiency.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a gamma spectrometer shielding device, and a primary object of the gamma spectrometer shielding device is to provide a gamma spectrometer shielding device that can replace a radioactive source without opening a cover.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
the embodiment of the invention provides a gamma spectrometer shielding device, which comprises:
the shell is provided with a first cavity and used for placing a detector;
the cover body is rotatably connected to the shell and provided with a first hole groove and a second hole groove, the first hole groove transversely penetrates through the cover body, the second hole groove is arranged in the middle of the cover body, one end of the second hole groove is communicated with the first cavity, and the other end of the second hole groove is communicated with the first hole groove;
the sliding component is provided with a plurality of placing hole grooves in the middle, each placing hole groove is provided with a placing platform used for placing the radioactive source, and the sliding component can be inserted into the first hole groove.
Furthermore, one side of the sliding part is provided with a marking scale for marking the position of the placing hole groove at the second hole groove.
Furthermore, the mark scale is provided with a plurality of groups of mark parts, each group of mark parts comprises two mark scales, and the two mark scales are respectively arranged on two sides of one of the placing hole grooves.
Further, the plurality of placing hole grooves comprise a first placing groove and a second placing groove which are adjacent, the two adjacent marking components comprise a first identification scale, a second identification scale, a third identification scale and a fourth identification scale, the first placing groove is arranged on the left side of the second placing groove, the first identification scale is arranged on the left side of the first placing groove, the second identification scale is arranged on the right side of the second placing groove, the third identification scale is arranged between the first placing groove and the first identification scale, and the fourth identification scale is arranged on the right side of the second identification scale.
Further, the placing table is provided with a plurality of steps which are sequentially arranged from top to bottom, and the diameters of the steps are sequentially reduced.
Further, the side wall of the sliding component is attached to the side wall of the first hole groove.
Furthermore, one end of the rotating shaft is fixedly connected with the shell, and the other end of the rotating shaft is rotatably connected with the cover body.
Furthermore, the limiting component is detachably connected to the side surfaces of the two ends of the sliding component.
Furthermore, the limiting part comprises a first limiting ring and a second limiting ring, the first limiting ring is sleeved on one end side of the sliding part, and the second limiting ring is sleeved on the other end side of the sliding part.
Further, the material of the sliding part is a lead material.
Compared with the prior art, the invention has the following technical effects:
in the technical scheme provided by the embodiment of the invention, the shell is used for shielding radioactive rays and is provided with a first cavity for placing a detector; the cover body is used for covering the opening at the upper part of the shell and is rotationally connected with the shell, the cover body is provided with a first hole groove and a second hole groove, the first hole groove transversely penetrates through the cover body, the second hole groove is arranged at the middle position of the cover body, one end of the second hole groove is communicated with the first cavity, and the other end of the second hole groove is communicated with the first hole groove; the sliding component is used for placing a radioactive source, the middle part of the sliding component is provided with a plurality of placing hole grooves, each placing hole groove is provided with a placing platform for placing the radioactive source, the sliding component can be inserted into the first hole groove, compared with the prior art, the cover body is provided with the hole groove, the hole groove penetrates through the shielding cover body and is positioned on the upper part of the end surface, the hole groove comprises a penetrating hole and a placing hole, the penetrating hole is arranged at one end close to the detector, the sealing plug is detachably arranged in the hole groove, the placing hole is arranged on the upper part of the penetrating hole, an object placing platform is arranged between the placing hole and the penetrating hole, the radioactive source can be placed on the object placing platform, the radioactive ray generated by the radioactive source can irradiate on a tested sample through the penetrating hole, the object placing hole is sealed through the sealing plug, the technical effect of conveniently detecting the tested sample is achieved, however, the radioactive sources release different rays in the using process, therefore, different radioactive sources need to be replaced for detection, in the operation of replacing the radioactive sources, the sealed plug needs to be opened firstly, then the radioactive sources are taken out, at the moment, the detector and the detected sample can be exposed in the air, on one hand, the support and the external environment can influence the detection result of the detector, so that the data detected by the detector is inaccurate, on the other hand, the radiation quantity received by the detector is large, so that the radiation injury to the detector is caused, if the detector is closed, the detector can be prevented from being radiated, but the detection time can be prolonged, so that the working efficiency is reduced, in the technical scheme, by arranging the first hole groove and the second hole groove on the cover body, the first hole groove transversely penetrates through the cover body, the second hole groove is arranged in the middle position of the cover body, one end of the second hole groove is communicated with the first cavity, the other end communicates each other with first hole groove, then set up a plurality of hole grooves of placing on sliding part, every is placed the downthehole setting of hole and is placed the platform, different radiation source places the bench of placing in the difference, then insert sliding part in the first hole groove, through removing sliding part, make different radiation source pass the second hole groove respectively and penetrate on being surveyed the sample, thereby reach the technical effect that the convenience detects being surveyed the sample, and, at the in-process of changing the radiation source, need not stop the detector, also need not open the lid and can accomplish the detection operation, the work efficiency who detects has been improved, the accuracy that detects has been improved simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a gamma spectrometer shielding device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a sliding component according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structural diagram of a sliding component according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 to 3, an embodiment of the present invention provides a gamma spectrometer shielding device, which includes:
the detector comprises a shell 1, wherein the shell 1 is provided with a first cavity 11 for placing a detector 9;
the cover body 2 is rotationally connected to the shell 1, the cover body 2 is provided with a first hole groove 21 and a second hole groove 22, the first hole groove 21 transversely penetrates through the cover body 2, the second hole groove 22 is arranged in the middle of the cover body 2, one end of the second hole groove 22 is communicated with the first cavity 11, and the other end of the second hole groove 22 is communicated with the first hole groove 21;
the sliding part 3, the sliding part 3 has a plurality of placing hole slots 31 in the middle, each placing hole slot 31 has a placing table 33 thereon for placing the radioactive source 7, and the sliding part 3 can be inserted into the first hole slot 21.
In the technical scheme provided by the embodiment of the invention, the shell 1 is used for shielding radioactive rays, and the shell 1 is provided with a first cavity 11 for placing the detector 9; the cover body 2 is used for covering an opening at the upper part of the shell 1, the cover body 2 is rotatably connected to the shell 1, the cover body 2 is provided with a first hole groove 21 and a second hole groove 22, the first hole groove 21 transversely penetrates through the cover body 2, the second hole groove 22 is arranged at the middle position of the cover body 2, one end of the second hole groove 22 is communicated with the first cavity 11, and the other end of the second hole groove 22 is communicated with the first hole groove 21; the sliding component 3 is used for placing the radioactive source 7, the middle part of the sliding component 3 is provided with a plurality of placing hole grooves 31, each placing hole groove 31 is provided with a placing platform 33 used for placing the radioactive source 7, the sliding component 3 can be inserted into the first hole groove 21, compared with the prior art, the cover body 2 is provided with the hole grooves which penetrate through the shielding cover body 2 and are positioned at the upper part of the end surface, the hole grooves comprise penetrating holes and object placing holes, the penetrating holes are arranged at one end close to the detector 9, the sealing plugs are detachably arranged in the hole grooves, the object placing holes are arranged at the upper parts of the penetrating holes, the object placing platforms are arranged between the object placing holes and the penetrating holes, the radioactive source 7 can be placed on the object placing platforms, radioactive rays generated by the radioactive source 7 can irradiate on the tested sample 8 through the penetrating holes and then the object placing holes are sealed through the sealing plugs, so that the technical effect of conveniently detecting the tested sample 8 is achieved, however, in the using process, the radiation emitted by each radiation source 7 is different, and therefore, different radiation sources 7 need to be replaced for detection, in the operation of replacing the radiation source 7, the sealed plug needs to be opened first, and then the radiation source 7 is taken out, at this time, the detector 9 and the detected sample are exposed in the air, on one hand, the bracket and the external environment can affect the detection result of the detector 9, so that the detection data of the detector 9 is inaccurate, on the other hand, the radiation amount received by the detector is large, so that the radiation injury to the detector is caused, if the mode of closing the detector 9 is adopted, the detector can be prevented from being irradiated, but the detection time can be increased, so that the working efficiency is reduced, in the technical scheme, by arranging the first hole groove 21 and the second hole groove 22 on the cover body 2, the first hole groove 21 transversely penetrates through the cover body 2, the second hole groove 22 is arranged in the middle of the cover body 2, one end of the second hole groove 22 is communicated with the first cavity 11, the other end of the second hole groove is communicated with the first hole groove 21, then a plurality of placing hole grooves 31 are arranged on the sliding part 3, a placing table 33 is arranged in each placing hole groove 31, different radioactive sources 7 are placed on different placing tables 33, then the sliding part 3 is inserted into the first hole groove 21, and through moving the sliding part 3, different radioactive sources 7 respectively penetrate through the second hole grooves 22 and are irradiated on a tested sample 8, so that the technical effect of conveniently detecting the tested sample 8 is achieved, in the process of replacing the radioactive sources 7, the detector 9 does not need to be stopped, the detection operation can be completed without opening the cover body 2, the detection work efficiency is improved, and the detection accuracy is improved.
The shell 1 is used for shielding radioactive rays, the shell 1 is provided with a first cavity 11 for placing a detector 9, the shell 1 is usually made of lead materials and has a good effect of shielding gamma rays or other radioactive rays, the shell 1 is usually of a cylindrical structure, the middle part of the shell 1 is provided with the first cavity 11, the upper part of the first cavity 11 is of a hollow structure, the detector 9 is arranged in the first cavity 11, the detector 9 is used for detecting a sample 8 to be detected, the detector 9 is arranged in the first cavity 11, one end of the detector 9 is electrically connected to a signal processing device, the sample 8 to be detected is placed on the detector 9, and the structure of the detector 9 does not belong to the invention content of the embodiment of the invention, so that the detector 9 only needs to be capable of detecting the sample 8 to be detected, and is not limited herein; the cover body 2 is used for covering an opening at the upper part of the shell 1, the cover body 2 is rotatably connected to the shell 1, the cover body 2 is provided with a first hole groove 21 and a second hole groove 22, the first hole groove 21 transversely penetrates through the cover body 2, the second hole groove 22 is arranged at the middle position of the cover body 2, one end of the second hole groove 22 is communicated with the first cavity 11, and the other end of the second hole groove 22 is communicated with the first hole groove 21; the sliding component 3 is used for placing the radioactive source 7, the middle part of the sliding component 3 is provided with a plurality of placing hole grooves 31, each placing hole groove 31 is provided with a placing platform 33 used for placing the radioactive source 7, the sliding component 3 can be inserted into the first hole groove 21, the cover body 2 is also made of lead materials, the first hole groove 21 is horizontally arranged or transversely arranged, or the first hole groove 21 is arranged along the radial direction of the cover body 2, the first hole groove 21 is usually in a cuboid structure or a cylinder structure, the first hole groove 21 usually passes through the axis of the cover body 2, the axis of the second hole groove 22 is superposed with the axis of the cover body 2, one end of the second hole groove 22 is communicated with the first cavity 11, the other end is communicated with the first hole groove 21, namely, the second hole groove 22 communicates the first hole groove 21 with the first cavity 11, the sliding component 3 is also made of lead materials, the shape of the sliding member 3 is the same as the shape of the first hole groove 21, in order to improve the safety, the outer wall of the sliding member 3 needs to be attached to the inner wall of the first hole groove 21, and the sliding member 3 can slide in the first hole groove 21, a plurality of placing hole grooves 31 are provided in the sliding member 3, the placing hole grooves 31 penetrate the upper side surface and the lower side surface of the sliding member 3, and a placing table 33 is provided in each placing hole groove 31 for placing the radiation source 7, it should be noted that the radiation source 7 is usually a point source, which is composed of a source holder and a film, the film is provided in the source holder, the film is coated with a radioactive substance, when the detection is required, different radiation sources 7 are placed in each placing table 33, then the sample 8 to be detected is placed on the detector 9, the radiation source cover 2 is closed, and the radiation source 7 in one of the placing tables 33 needs to be used, pulling or promoting sliding part 3, make one of them place the hole groove 31 and correspond with second hole groove 22, the ray that radiation source 7 released can shine on by survey sample 8 through second hole groove 22, make detector 9 can detect by survey sample 8, thereby reach the technical effect that the convenience detects by survey sample 8, and, at the in-process of changing radiation source 7, need not stop detector 9, also need not to open lid 2 and can accomplish the detection operation, the work efficiency who detects has been improved, the accuracy that detects has been improved simultaneously.
Further, the sliding member 3 has a marking scale 32 on one side thereof for marking the position of the placement hole 31 at the second hole 22. In the present embodiment, the sliding member 3 is further limited, a marking scale 32 is provided on the upper side of the sliding member 3, the marking scale 32 is used for marking the position of the placing hole 31, since the placing hole 31 is located inside the first hole 21, the position of the placing hole 31 cannot be seen, and the placing hole 31 cannot correspond to the second hole 22, therefore, the marking scale 32 is provided on the upper side of the sliding member 3, when the axis of one placing hole 31 and the axis of the second hole 22 coincide with each other, a mark is provided at the position where the sliding member 3 is exposed, then the sliding member 3 is moved, when the axis of the adjacent placing hole 31 and the axis of the second hole 22 coincide with each other, a second mark is provided at the position where the sliding member 3 is exposed, and so on, the marking scale 32 is formed; optionally, the marking scale 32 has a plurality of sets of marking components, each set of marking components includes two identification scales, the two identification scales are respectively disposed on two sides of one of the placing hole slots 31, each placing hole slot 31 corresponds to one set of identification scales, when an axis of one of the placing hole slots 31 is overlapped with an axis of the second hole slot 22, two ends of the sliding component 3 are respectively exposed outside the cover body 2, then one identification scale is respectively disposed on two exposed sides of the sliding component 3, and when the identification scales on two sides of the sliding component 3 are overlapped with an edge of the cover body 2, an axis of one of the placing hole slots 31 is overlapped with an axis of the second hole slot 22, thereby achieving a technical effect of marking the position of the placing hole slot 31 in the second hole slot 22; further, the plurality of placing hole slots 31 include a first placing slot 311 and a second placing slot 312 which are adjacent to each other, the two adjacent marking members include a first identification scale 321, a second identification scale 322, a third identification scale 323 and a fourth identification scale 324, the first placing slot 311 is disposed on the left side of the second placing slot 312, the first identification scale 321 is disposed on the left side of the first placing slot 311, the second identification scale 322 is disposed on the right side of the second placing slot 312, the third identification scale 323 is disposed between the first placing slot 311 and the first identification scale 321, and the fourth identification scale 324 is disposed on the right side of the second identification scale 322, so as to further achieve the technical effect of determining the position of the placing hole slot 31.
Further, the placing table 33 has a plurality of steps which are arranged in order from top to bottom, and the diameters of which are reduced in order. In this embodiment, the placing table 33 is further defined, each placing table 33 is set to be in the shape of a plurality of steps, the plurality of steps are sequentially arranged from top to bottom, the diameters of the plurality of steps are sequentially reduced, and the radiation sources 7 with different diameters can be placed on each step, so that the applicability of the placing table 33 is improved.
Furthermore, a rotating shaft 4 is added, one end of the rotating shaft 4 is fixedly connected to the shell 1, and the other end is rotatably connected to the cover body 2. The effect of pivot 4 is to make lid 2 rotate, and pivoted one end is fixed on casing 1, and the other end rotates to be connected in lid 2 for lid 2 can rotate around the axis of pivot 4, thereby reaches the technological effect of opening or closed first cavity 11.
Furthermore, a limiting part is added, and the limiting part is detachably connected to the side surfaces of two ends of the sliding part 3. In this embodiment, a limiting component is added, the limiting component is used for limiting the position of the sliding component 3, and it is prevented that the gamma spectrometer shielding device is in the operation process, the sliding component 3 and the cover body 2 are separated from each other to cause radiation damage to people, the limiting component is detachably connected to the side surfaces of the two ends of the sliding component 3, optionally, the limiting component comprises a first limiting ring 51 and a second limiting ring 52, the first limiting ring 51 is sleeved on one end side of the sliding component 3, the second limiting ring 52 is sleeved on the other end side of the sliding component 3, the first limiting ring 51 and the second limiting ring 52 are rubber rings, friction force between the limiting component and the sliding component 3 can be increased, and meanwhile, the sliding component 3 can be prevented from being separated from the cover body 2, and further, the technical effect of preventing radiation leakage is achieved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A gamma spectrometer shielding device, comprising:
the shell is provided with a first cavity and used for placing a detector;
the cover body is rotatably connected to the shell and provided with a first hole groove and a second hole groove, the first hole groove transversely penetrates through the cover body, the second hole groove is arranged in the middle of the cover body, one end of the second hole groove is communicated with the first cavity, and the other end of the second hole groove is communicated with the first hole groove;
the sliding component is provided with a plurality of placing hole grooves in the middle, each placing hole groove is provided with a placing platform used for placing the radioactive source, and the sliding component can be inserted into the first hole groove.
2. The gamma spectrometer shielding device according to claim 1,
and one side of the sliding part is provided with a marking scale for marking the position of the placing hole groove at the second hole groove.
3. The gamma spectrometer shielding device according to claim 2,
the marking scale is provided with a plurality of groups of marking parts, each group of marking parts comprises two marking scales, and the two marking scales are respectively arranged on two sides of one of the placing hole grooves.
4. The gamma spectrometer shielding device according to claim 3,
the plurality of placing hole grooves comprise a first placing groove and a second placing groove which are adjacent, two adjacent marking components comprise a first identification scale, a second identification scale, a third identification scale and a fourth identification scale, the first placing groove is arranged on the left side of the second placing groove, the first identification scale is arranged on the left side of the first placing groove, the second identification scale is arranged on the right side of the second placing groove, the third identification scale is arranged between the first placing groove and the first identification scale, and the fourth identification scale is arranged on the right side of the second identification scale.
5. The gamma spectrometer shielding device according to claim 1,
the placing table is provided with a plurality of steps which are sequentially arranged from top to bottom, and the diameters of the steps are sequentially reduced.
6. The gamma spectrometer shielding device according to claim 1,
the side wall of the sliding component is mutually attached to the side wall of the first hole groove.
7. The gamma spectrometer shielding device of claim 1, further comprising:
and one end of the rotating shaft is fixedly connected with the shell, and the other end of the rotating shaft is rotatably connected with the cover body.
8. The gamma spectrometer shielding device according to any one of claims 1 to 7, further comprising:
and the limiting parts are detachably connected to the side surfaces of the two ends of the sliding part.
9. The gamma spectrometer shielding device according to claim 8,
the limiting part comprises a first limiting ring and a second limiting ring, the first limiting ring is sleeved on one end side of the sliding part, and the second limiting ring is sleeved on the other end side of the sliding part.
10. Gamma spectrometer shielding device according to any of the claims 1 to 6,
the sliding component is made of lead materials.
CN202011046983.4A 2020-09-29 2020-09-29 Gamma spectrometer shielding device Pending CN111999761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011046983.4A CN111999761A (en) 2020-09-29 2020-09-29 Gamma spectrometer shielding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011046983.4A CN111999761A (en) 2020-09-29 2020-09-29 Gamma spectrometer shielding device

Publications (1)

Publication Number Publication Date
CN111999761A true CN111999761A (en) 2020-11-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011046983.4A Pending CN111999761A (en) 2020-09-29 2020-09-29 Gamma spectrometer shielding device

Country Status (1)

Country Link
CN (1) CN111999761A (en)

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