CN220476232U - Metal shielding shell for neutron detector - Google Patents
Metal shielding shell for neutron detector Download PDFInfo
- Publication number
- CN220476232U CN220476232U CN202322089935.9U CN202322089935U CN220476232U CN 220476232 U CN220476232 U CN 220476232U CN 202322089935 U CN202322089935 U CN 202322089935U CN 220476232 U CN220476232 U CN 220476232U
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- annular base
- lower annular
- shell
- support
- metal shielding
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 26
- 239000002184 metal Substances 0.000 title claims abstract description 26
- 239000000523 sample Substances 0.000 claims description 29
- 230000003993 interaction Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Measurement Of Radiation (AREA)
Abstract
The utility model belongs to the technical field of particle detectors, and particularly relates to a metal shielding shell for a neutron detector. The utility model comprises an upper cover plate, a middle annular shell, a lower annular base, a support bracket and a fan-shaped main board, wherein the upper cover plate is covered on the middle annular shell, the middle annular shell is arranged on the lower annular base, the support bracket is placed in a support bracket groove on the lower annular base, and the support bracket is arranged through a screw hole site on the back of the lower annular base by a fastening screw; a top plate supporting pillar is arranged between every two supporting brackets; the top plate support post is placed in a top plate support post groove on the lower annular base, and is installed by passing through a screw hole site on the back of the lower annular base through a fastening screw. The utility model can solve the problems of large total volume of the detection unit part of the existing detector and poor shielding effect on environmental interference.
Description
Technical Field
The utility model belongs to the technical field of particle detectors, and particularly relates to a metal shielding shell for a neutron detector.
Background
At present, an installation method of power supply and signal interaction equipment (such as an amplifier, a high-voltage power supply, a low-voltage power supply, an automatic scaler and the like) in the neutron detection field is usually a plug-in type chassis, and the instrument installation mode is based on a modularized design, has the characteristic of high equipment installation freedom, has no functions of electromagnetic shielding, nuclear radiation shielding and the like, is easy to be influenced by gamma rays and electromagnetic interference, and cannot realize low-radioactivity detection work; in addition, the design has larger volume and lower integration degree, so that a novel shielding container with good environmental interference shielding effect and small occupied space is needed to be designed.
When particle detection, especially neutron detection, is carried out, the probe can meet the high 4 pi receiving angle and the optimal slow distance to a great extent simultaneously when the probe is in annular arrangement. Therefore, in order to realize accurate control of the single-path probe, the signal processing module mainboards with the same number as the probes can also be annularly arranged, so that the annular metal shielding shell is specially designed based on the requirements. In addition, in order to meet the low background detection requirement, the internal structure is designed in a highly customized mode, so that the high-efficiency environment interference shielding function is realized while the supporting, fixing and protecting of the main board are met.
Disclosure of Invention
The utility model solves the technical problems by providing the metal shielding shell for the neutron detector, which can solve the problems of large total volume and poor environmental interference shielding effect of detection unit parts (such as a high-voltage power supply, a low-voltage power supply, a main amplifier, an automatic scaler and the like) of the existing detector, provide the functions of supporting, protecting, signal transmission, interference shielding and the like for a fan-shaped circuit board, support and install a plurality of fan-shaped detector mainboards, and design structures comprising a USB signal interaction interface, a high-voltage coaxial signal interface, a monitoring hole site and the like so as to meet the requirements of low-background nuclear particle detection.
The utility model adopts the technical scheme that:
the metal shielding shell for the neutron detector comprises an upper cover plate, a middle annular shell, a lower annular base, a supporting bracket and a fan-shaped main board, wherein the upper cover plate is covered on the middle annular shell; a top plate supporting pillar is arranged between every two supporting brackets; the top plate support post is placed in a top plate support post groove on the lower annular base, and is installed by passing through a screw hole site on the back of the lower annular base through a fastening screw.
The center of the lower annular base is provided with a bottom plate center sample inlet, and a plurality of circular probe hole sites are arranged around the bottom plate center sample inlet.
The center of the lower annular base is provided with a central supporting ring, and the position of the central supporting ring corresponds to the position of the central sample inlet of the bottom plate.
A supporting bracket is arranged on the lower annular base between every two circular probe hole sites, one end of the supporting bracket is fixedly connected with the central supporting annular ring, and the other end of the supporting bracket is fixedly connected with the inner part of the middle annular shell.
The two sides of the support bracket are provided with a plurality of main board limiting support posts, and the main board limiting support posts are placed in main board limiting support post grooves on the lower annular base and are bonded through metal glue so as to ensure that the main board limiting support posts do not fall off.
The support bracket ensures that the central support ring does not become significantly displaced within the shielding cage.
The middle annular shell is combined with the support bracket through the lateral screw hole sites by using fastening screws.
The fan-shaped main board passes through the top board supporting pillar and is placed on the central supporting circular ring and the supporting bracket, and the fan-shaped main board passes through the main board hole site through the main board limiting screw and is fixed on the main board limiting pillar.
And the side wall of the middle annular shell is provided with a coaxial socket and a USB data socket, and an interface of the fan-shaped main board is connected with the coaxial socket or the USB data socket through a signal transmission line, so that a signal interaction function is realized.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The metal shielding shell for the neutron detector provided by the utility model is based on the composition of 304 stainless steel, 5052 aluminum or 6061 aluminum, and can ensure good electromagnetic shielding effect and grounding.
(2) The metal shielding shell for the neutron detector provided by the utility model can perform the functions of power input, signal output, data output and the like through the coaxial socket on the middle annular shell and the USB data interface under the condition of not disassembling the neutron detector.
(3) The metal shielding shell for the neutron detector provided by the utility model has small overall volume, and can be directly placed at the upper end of the cylindrical high-density polyethylene moderating material without other additional structural designs.
(4) The metal shielding shell for the neutron detector provided by the utility model has the advantages that the wiring port is reserved at the top, and a space is reserved for possible expansion functions.
Drawings
FIG. 1, a schematic view of a metallic shielding enclosure for a neutron detector.
FIG. 2, schematic view B of a metallic shielding enclosure for a neutron detector.
Fig. 3, schematic view C of a metallic shielding case for neutron detectors.
FIG. 4 is a schematic illustration of a neutron detector with a metallic shielding shell disassembled.
FIG. 5 is a schematic diagram A of a combination of the inside of a cavity of a metal shielding shell for a neutron detector.
FIG. 6 is a schematic diagram B of a combination of the interior of a metallic shielding housing cavity for a neutron detector.
FIG. 7 is a schematic diagram C of a combination of the interior of a metallic shielding housing cavity for a neutron detector.
Fig. 8, upper cover plate schematic a.
Fig. 9, upper cover plate schematic B.
FIG. 10 is a schematic view of a middle annular housing.
Fig. 11, lower annular base schematic a.
Fig. 12, lower annular base schematic B.
Fig. 13, support bracket schematic a.
Fig. 14, support bracket schematic B.
Fig. 15, top plate support strut schematic.
FIG. 16 is a schematic view of a central support ring.
In the figure: the device comprises a 1-upper cover plate, a 2-middle annular shell, a 3-screw hole site, a 4-coaxial socket, a 5-USB data socket, a 6-central sample inlet, a 7-first reserved wiring port and an 8-second reserved wiring port; 9-a lower annular base, 10-a bottom plate central sample inlet, 11-a circular probe hole site, 12-a central supporting annular ring and 13-a supporting bracket; 14-top plate supporting pillars, 15-main plate limiting pillars, 16-main plate limiting screws, 17-top plate supporting pillar grooves, 18-supporting bracket grooves, 19-main plate limiting pillar grooves and 20-fastening screws.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only 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 utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in figures 1-16, the novel metal shielding shell for neutron detector comprises an upper cover plate 1, a hole site 3 containing screws, a central sample inlet 6, reserved wiring ports 7 and 8, a middle annular shell 2, a hole site 3 containing screws, a coaxial socket 4, a USB data socket 5, a lower annular base 9, a bottom plate central sample inlet 10, a circular probe hole site 11, a top plate support post groove 17, a support bracket groove 18, a main plate limit post groove 19, a screw hole site 3, a central support ring 12, a support bracket 13, a top plate support post 14, a main plate limit post 15, a main plate limit screw 16, a fastening screw 20 and a fan-shaped main plate,
the upper cover plate 1 is covered on the middle annular shell 2, the middle annular shell 2 is arranged on the lower annular base 9, a bottom plate central sample inlet 10 is formed in the center of the lower annular base 9, and a plurality of circular probe hole sites 11 are formed around the bottom plate central sample inlet 10;
a central supporting circular ring 12 is arranged at the center of the lower annular base 9, and the position of the central supporting circular ring 12 corresponds to the position of the central sample inlet 10 of the bottom plate;
a support bracket 13 is arranged on the lower annular base 9 between every two circular probe hole sites 11, one end of the support bracket 13 is fixedly connected with the central support annular ring 12, the other end of the support bracket 13 is fixedly connected with the inside of the middle annular shell 2, the support bracket 13 is placed in a support bracket groove 18 on the lower annular base 9, and the support bracket is installed through a screw hole site 3 on the back of the lower annular base 9 by a fastening screw 20;
a top plate supporting pillar 14 is arranged between every two supporting brackets 13; the top plate supporting strut 14 is arranged in a top plate supporting strut groove 17 on the lower annular base 9, and is installed by passing through a screw hole site 3 on the back of the lower annular base 9 through a fastening screw 20;
a plurality of main board limiting support posts 15 are arranged on two sides of the supporting bracket 13, and the main board limiting support posts 15 are placed in main board limiting support post grooves 19 on the lower annular base 9 and are bonded through metal glue so as to ensure that the main board limiting support posts do not fall off;
the supporting bracket 13 ensures that the central supporting circular ring 12 cannot be significantly shifted in the shielding box, and the central supporting circular ring 12 can be fixed by using metal glue;
subsequently, the middle annular housing 2 is combined with the support bracket 13 through the side screw hole sites 3 by the fastening screws 20 to complete the side plate installation and fixation work.
The fan-shaped main board passes through the top board supporting post 14, is placed on the central supporting circular ring 12 and the supporting bracket 13, and is fixed on the main board limiting post 15 through the main board limiting screw 16 and the main board hole site;
the side wall of the middle annular shell 2 is provided with a coaxial socket 4 and a USB data socket 5, and an interface of the fan-shaped main board is connected with the coaxial socket 4 or the USB data socket 5 through a signal transmission line to realize a signal interaction function;
the upper cover plate 1 is covered and fixed by fastening screws 20 through the screw holes 3.
After the whole installation is finished, the sample to be tested can sequentially pass through the central sample inlet 6 and the bottom plate central sample inlet 10 so as to realize the delivery of the sample; the coaxial socket 4 can realize the functions of high-voltage input, low-voltage input and pulse signal output; the input/output function of signals can be realized through the USB data socket 5; the signal monitoring function of the internal circuit can be realized through the reserved wiring port 7 or the reserved wiring port 8, and various functional wires can be led out through the reserved wiring port 7 and the reserved wiring port 8 so as to meet various functions under special working conditions; when the circuit board is installed, the storage and arrangement of the circuit lines can be realized by utilizing the reserved groove position designed on the supporting bracket 13.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The metal shielding shell for the neutron detector is characterized by comprising an upper cover plate (1), a middle annular shell (2), a lower annular base (9), a support bracket (13) and a fan-shaped main board, wherein the upper cover plate (1) is covered on the middle annular shell (2), the middle annular shell (2) is arranged on the lower annular base (9), the support bracket (13) is arranged in a support bracket groove (18) on the lower annular base (9), and the support bracket is installed by penetrating through a screw hole site (3) on the back of the lower annular base (9) through a fastening screw (20); a top plate supporting pillar (14) is arranged between every two supporting brackets (13); the top plate supporting support column (14) is placed in a top plate supporting support column groove (17) on the lower annular base (9), and is installed through a screw hole site (3) in the back of the lower annular base (9) by a fastening screw (20).
2. The metal shielding shell for the neutron detector according to claim 1, wherein a bottom plate central sample inlet (10) is formed in the center of the lower annular base (9), and a plurality of circular probe hole sites (11) are formed around the bottom plate central sample inlet (10).
3. The metal shielding shell for neutron detectors according to claim 2, characterized in that a central support ring (12) is arranged at the center of the lower annular base (9), and the position of the central support ring (12) corresponds to the position of the bottom plate central sample inlet (10).
4. A metal shielding shell for neutron detectors according to claim 3, characterized in that a support bracket (13) is arranged on the lower annular base (9) between every two circular probe hole sites (11), one end of the support bracket (13) is fixedly connected with the central support annular ring (12), and the other end is fixedly connected with the inside of the middle annular shell (2).
5. The metal shielding shell for the neutron detector according to claim 1, wherein a plurality of main board limiting support posts (15) are arranged on two sides of the supporting bracket (13), and the main board limiting support posts (15) are placed in main board limiting support post grooves (19) on the lower annular base (9) and are bonded through metal glue to ensure that the main board limiting support posts do not fall off.
6. The metal shielding housing for neutron detectors according to claim 4, characterised in that the support brackets (13) ensure that the central support ring (12) does not undergo significant displacement within the shielding box.
7. The metal shielding shell for neutron detectors according to claim 1, characterized in that the middle annular shell (2) is combined with the support bracket (13) by means of fastening screws (20) through lateral screw holes (3).
8. The metal shielding shell for the neutron detector according to claim 5, wherein the fan-shaped main plate passes through the top plate supporting column (14), is placed on the central supporting circular ring (12) and the supporting bracket (13), and is fixed on the main plate limiting column (15) through a main plate hole site by a main plate limiting screw (16).
9. The metal shielding shell for the neutron detector according to claim 1, wherein a coaxial jack (4) and a USB data jack (5) are arranged on the side wall of the middle annular shell (2), and an interface of the fan-shaped main board is connected with the coaxial jack (4) or the USB data jack (5) through a signal transmission line to realize a signal interaction function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322089935.9U CN220476232U (en) | 2023-08-04 | 2023-08-04 | Metal shielding shell for neutron detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322089935.9U CN220476232U (en) | 2023-08-04 | 2023-08-04 | Metal shielding shell for neutron detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220476232U true CN220476232U (en) | 2024-02-09 |
Family
ID=89806130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322089935.9U Active CN220476232U (en) | 2023-08-04 | 2023-08-04 | Metal shielding shell for neutron detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220476232U (en) |
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2023
- 2023-08-04 CN CN202322089935.9U patent/CN220476232U/en active Active
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