CN219016593U - Drawer type lead shield for liquid scintillation tritium measuring instrument - Google Patents
Drawer type lead shield for liquid scintillation tritium measuring instrument Download PDFInfo
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- CN219016593U CN219016593U CN202222993717.3U CN202222993717U CN219016593U CN 219016593 U CN219016593 U CN 219016593U CN 202222993717 U CN202222993717 U CN 202222993717U CN 219016593 U CN219016593 U CN 219016593U
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- drawer
- lead
- shielding
- corridor
- light
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- 239000007788 liquid Substances 0.000 title claims abstract description 27
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 title claims abstract description 24
- 229910052722 tritium Inorganic materials 0.000 title claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 20
- 239000010949 copper Substances 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims abstract description 17
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a drawer type lead shield for a liquid scintillation tritium measuring instrument, and belongs to the technical field of radioactivity measurement. The shielding body comprises a lead shell, a light shielding corridor and a drawer; the inside of the lead shell is hollow, the front end and the rear end of the lead shell are respectively provided with square sockets, the left end and the right end of the lead shell are cylindrical, a circular opening is formed in the lead shell, the lead shell is communicated with the inside of the lead shell, the copper pipe is fixedly connected with the lead shell through the circular opening, and the photomultiplier is arranged in the copper pipe; the light-shielding corridor comprises a front light-shielding corridor and a rear light-shielding corridor, the front light-shielding corridor is arranged at the front end of the lead shell through a screw, a square socket is formed in the front end of the front light-shielding corridor, and the rear light-shielding corridor is arranged at the rear end of the lead shell through a screw; the drawer is provided with a groove, a glass bottle for measuring samples is arranged in the middle of the groove, two sides of the glass bottle are respectively provided with a cushion block for fixing the glass bottle in the groove, and the drawer is inserted into the lead shell through a socket at the front end of the front light shielding corridor. The utility model has flexible and simple operation and excellent electromagnetic interference resistance and photophobic performance, and the measurement result is more accurate.
Description
Technical Field
The utility model belongs to the technical field of radioactivity measurement, and particularly relates to a drawer type lead shield for a liquid scintillation tritium measuring instrument.
Background
Liquid scintillation measurement is a radiometric technique that is performed by means of scintillation fluid as a medium for the transmission of radiant energy. The scintillator is a luminescent substance in the scintillation liquid, is an important component of the scintillation liquid and is also an effective source of photons, and the photomultiplier converts weak optical signals into electric signals, so that the scintillator has extremely high sensitivity and is extremely easy to be influenced by the outside.
Natural magnetic fields, sunlight, household appliances and the like surrounding human beings can emit electromagnetic radiation with different intensities, and for liquid scintillation tritium measurement, the liquid scintillation tritium measurement is not only easy to be subjected to external electromagnetic interference, but also easy to be influenced by light during measurement, so that the measurement result has larger error or is invalid. At present, the shielding body structure of the liquid scintillation tritium measuring instrument has poor electromagnetic interference prevention and light shielding effects, so that the measurement result is not accurate enough, and meanwhile, the sample to be measured is inconvenient to place and replace flexibly, so that the operation efficiency is low. Thus, there is an urgent need for a lead shield for a liquid scintillation tritium gauge that can be conveniently operated and accurately measured.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a drawer type lead shield for a liquid scintillation tritium measuring instrument, which solves the problem that the measuring environment is easily affected by electromagnetic interference and light by adopting lead materials, black oxidation treatment and the like, and adopts a drawer type structure, thereby being convenient for operating a measuring sample.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a drawer-type lead shield for a liquid scintillation tritium gauge, the shield comprising a lead shell, a light shield, and a drawer;
the inside of the lead shell is hollow, the front end and the rear end of the lead shell are respectively provided with square sockets, the left end and the right end of the lead shell are cylindrical, a circular opening is formed in the lead shell, the lead shell is communicated with the inside of the lead shell, the copper pipe is fixedly connected with the lead shell through the circular opening, and the photomultiplier is arranged in the copper pipe;
the front light-shielding corridor comprises a front light-shielding corridor and a rear light-shielding corridor, the front light-shielding corridor is arranged at the front end of the lead shell through screws, a square socket is formed in the front end of the front light-shielding corridor, and the rear light-shielding corridor is arranged at the rear end of the lead shell through screws;
the drawer is provided with a groove, a glass bottle for measuring samples is arranged in the middle of the groove, cushion blocks are respectively arranged on two sides of the glass bottle so as to fix the glass bottle in the groove, and the drawer is inserted into the lead shell through a socket at the front end of the front light-shielding corridor.
Further: the lead shell, the drawer and the cushion block are made of lead. Lead is a shielding material with good cost performance and can shield interference of gamma particles in the environment.
Further: the material of the light-shielding corridor is aluminum alloy, and the surface of the light-shielding corridor is subjected to black oxidation treatment. The light shielding corridor adopts aluminum alloy, solves the processing problem caused by softer lead material, and the surface is subjected to black oxidation treatment to absorb light so as to meet the light shielding requirement.
Further: other electronic components are also arranged in the copper pipe.
Further: the copper pipe is screwed and fixed with the cylinder through threads.
Further: and the circular opening of the lead shell and the copper pipe is sealed by sealant.
Further: sealing rings are arranged at two ends of the drawer. Not only increases friction force to make the drawer difficult to slide out, but also fills the gap formed by the light-shielding corridor and the drawer, and avoids light from entering.
Further: the drawer is provided with a handle. Is convenient for drawing and inserting the drawer.
Further: the drawer is inserted into the interior of the lead shell such that the carafe is centered within the interior of the lead shell.
Further: when the drawer is in an inserted state in the lead shell, the lead shell is sealed and light-tight.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
1) The lead shell and the drawer are made of lead materials, so that the lead shell and the drawer are high in cost performance, have a good shielding effect, shield interference of gamma particles in the environment, and the cushion block arranged in the drawer groove is made of lead materials, so that the shielding effect of the drawer and the lead shell is enhanced, and a sample to be detected in the center of the shielding body is effectively protected from interference; meanwhile, the aluminum alloy material is adopted in the light-shielding corridor, so that the processing problem of the shielding body caused by softer lead material is solved, the surface of the shielding body is subjected to black oxidation treatment, light rays at the drawer jack are absorbed to the greatest extent, and an excellent light-shielding effect is achieved by matching with the sealing ring and the sealant;
2) The utility model has the advantages of small structure and flexible operation, adopts a drawer type structure to place a sample to be measured in the measuring instrument for measurement, and can be replaced only by drawing out the drawer when replacing the sample, thereby reducing the influence of operation time and redundant operation on the measurement result;
3) The utility model effectively shields electromagnetic interference of external environment, and meets the light-shielding requirement when the photomultiplier is used, so that the accuracy of a measurement result is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a drawer-type lead shield for a liquid scintillation tritium gauge according to the present utility model.
Fig. 2 is a schematic diagram of a drawer-type lead shield for a liquid scintillation tritium gauge according to the present utility model.
FIG. 3 is a front view of a drawer-type lead shield for a liquid scintillation tritium gauge provided by the present utility model.
Fig. 4 is a cross-sectional view of section A-A of fig. 3.
The marks in the figure are respectively:
1. lead shell, copper pipe, front light-shielding corridor, rear light-shielding corridor, drawer, glass bottle, cushion block and sealing ring.
Detailed Description
To make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model. Accordingly, the detailed description of the embodiments of the utility model provided below is not intended to limit the scope of the utility model as claimed, but is merely representative of selected embodiments of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in the following figures.
Example 1:
as shown in fig. 1, 2, 3 and 4, a drawer 5 type lead shield for a liquid scintillation tritium gauge, the shield comprising a lead housing 1, a light shielding corridor and a drawer 5; the inside of the lead shell 1 is hollow, the front end and the rear end of the lead shell 1 are respectively provided with square sockets, the left end and the right end of the lead shell 1 are cylindrical and symmetrically arranged, and are provided with round openings which are communicated with the inside of the lead shell 1, the copper pipe 2 is fixedly connected with the lead shell 1 through the round openings, and the photomultiplier is arranged in the copper pipe 2; the front light-shielding corridor comprises a front light-shielding corridor 3 and a rear light-shielding corridor 4, the front light-shielding corridor 3 is arranged at the front end of the lead shell 1 through screws, a square socket is formed in the front end of the front light-shielding corridor, and the rear light-shielding corridor 4 is arranged at the rear end of the lead shell 1 through screws; the drawer 5 is provided with a groove, a glass bottle 6 for measuring samples is arranged in the middle of the groove, two sides of the glass bottle 6 are respectively provided with a cushion block 7 for fixing the glass bottle 6 in the groove, and the drawer 5 is inserted into the lead shell 1 through a socket at the front end of the front light shielding corridor 3.
The lead shell 1, the drawer 5 and the cushion block 7 are made of lead, and the lead is a shielding material with excellent cost performance and can shield the interference of gamma particles in the environment; the material of light-resistant corridor is aluminum alloy, and its surface carries out black oxidation treatment, and light-resistant corridor adopts aluminum alloy, solves the processing problem that lead material is softer and leads to, and black oxidation treatment is done on the surface, absorbs light, reaches the light-resistant requirement.
Other electronic components are also arranged in the copper pipe 2; the copper pipe 2 is screwed and fixed with the cylinder through threads; the circular opening where the lead shell 1 and the copper pipe 2 are assembled is sealed by sealant; sealing rings 8 are arranged at two ends of the drawer 5, so that friction force is increased, the drawer 5 is not easy to slide out, gaps formed by the light-shielding corridor and the drawer 5 are filled, and light is prevented from entering; the drawer 5 is provided with a handle, so that the drawer 5 can be conveniently pulled out and inserted; the drawer 5 is inserted into the lead shell 1 so that the glass bottle 6 is positioned at the center of the lead shell 1; when the drawer 5 is in the inserted state in the lead shell 1, the lead shell 1 is sealed and light-proof.
When the lead shell is in actual use, the front light-shielding corridor 3 and the rear light-shielding corridor 4 are fixed on the lead shell 1 through screws, and after the photomultiplier and other electronic components are placed in the copper pipe 2, the copper pipe is inserted into a circular opening of the lead shell 1 and screwed and fixed through threads; then, the drawer 5 is pulled out, a cushion block 7 is placed in a groove of the drawer 5, a glass bottle 6 for placing a sample to be tested is placed between the two cushion blocks 7, and the drawer 5 is inserted, so that the glass bottle 6 is positioned at the center of the lead shell 1 and horizontally aligned with the photomultiplier; and finally starting related equipment and starting measurement.
The utility model has good electromagnetic interference resistance and photophobic performance, so that the accuracy of the measurement result is obviously improved; meanwhile, the drawer type structure is used for loading the belt measurement sample, so that the operation is more flexible and simple when the sample is placed and replaced, the time is reduced, and the operation efficiency is improved.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the utility model, and the scope of the utility model should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.
Claims (10)
1. A drawer-type lead shield for a liquid scintillation tritium measuring instrument, the shield comprising a lead shell, a light shielding corridor and a drawer;
the inside of the lead shell is hollow, the front end and the rear end of the lead shell are respectively provided with square sockets, the left end and the right end of the lead shell are cylindrical, a circular opening is formed in the lead shell, the lead shell is communicated with the inside of the lead shell, the copper pipe is fixedly connected with the lead shell through the circular opening, and the photomultiplier is arranged in the copper pipe;
the front light-shielding corridor comprises a front light-shielding corridor and a rear light-shielding corridor, the front light-shielding corridor is arranged at the front end of the lead shell through screws, a square socket is formed in the front end of the front light-shielding corridor, and the rear light-shielding corridor is arranged at the rear end of the lead shell through screws;
the drawer is provided with a groove, a glass bottle for measuring samples is arranged in the middle of the groove, cushion blocks are respectively arranged on two sides of the glass bottle so as to fix the glass bottle in the groove, and the drawer is inserted into the lead shell through a socket at the front end of the front light-shielding corridor.
2. A drawer-type lead shield for a liquid scintillation tritium gauge as recited in claim 1, wherein the lead housing, drawer, and spacer are of lead.
3. A drawer-type lead shield for a liquid scintillation tritium gauge as recited in claim 1, wherein the light shielding corridor is made of aluminum alloy, and the surface of the light shielding corridor is subjected to black oxidation treatment.
4. A drawer-type lead shield for a liquid scintillation tritium gauge as recited in claim 1, wherein other electronics are also provided in the copper tube.
5. A drawer-type lead shield for a liquid scintillation tritium gauge as recited in claim 1, wherein the copper tube is threadably secured to the lead shell.
6. A drawer-type lead shield for a liquid scintillation tritium gauge as recited in claim 1, wherein the circular opening where the lead shell is assembled with the copper tube is sealed with a sealant.
7. A drawer-type lead shield for a liquid scintillation tritium gauge as recited in claim 1, wherein sealing rings are provided at both ends of the drawer.
8. A drawer-type lead shield for a liquid scintillation tritium gauge as recited in claim 1, wherein a handle is provided on the drawer.
9. A drawer-type lead shield for a liquid scintillation tritium gauge as recited in claim 1, wherein the drawer is inserted into the interior of the lead housing such that the glass vial is centered within the interior of the lead housing.
10. A drawer-type lead shield for a liquid scintillation tritium gauge as recited in claim 1, wherein the drawer is sealed from light when the drawer is in an inserted state within the lead housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222993717.3U CN219016593U (en) | 2022-11-10 | 2022-11-10 | Drawer type lead shield for liquid scintillation tritium measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222993717.3U CN219016593U (en) | 2022-11-10 | 2022-11-10 | Drawer type lead shield for liquid scintillation tritium measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219016593U true CN219016593U (en) | 2023-05-12 |
Family
ID=86243047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222993717.3U Active CN219016593U (en) | 2022-11-10 | 2022-11-10 | Drawer type lead shield for liquid scintillation tritium measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219016593U (en) |
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2022
- 2022-11-10 CN CN202222993717.3U patent/CN219016593U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A drawer type lead shield for liquid scintillation tritium measurement instrument Granted publication date: 20230512 Pledgee: China Construction Bank Corporation Mianyang Branch Pledgor: Zhongchuang Zhike (Mianyang) Technology Co.,Ltd. Registration number: Y2024980004201 |