CN217181250U - Alpha, beta radioactivity monitoring equipment - Google Patents
Alpha, beta radioactivity monitoring equipment Download PDFInfo
- Publication number
- CN217181250U CN217181250U CN202123450215.8U CN202123450215U CN217181250U CN 217181250 U CN217181250 U CN 217181250U CN 202123450215 U CN202123450215 U CN 202123450215U CN 217181250 U CN217181250 U CN 217181250U
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- rod
- lifter
- distance
- detector
- control unit
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- 238000012544 monitoring process Methods 0.000 title abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 19
- 238000012806 monitoring device Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 7
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 5
- 239000005083 Zinc sulfide Substances 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 4
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 4
- 238000012360 testing method Methods 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000003904 radioactive pollution Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Measurement Of Radiation (AREA)
Abstract
The utility model provides an alpha, beta radioactivity monitoring facilities, include: the device comprises a shell, a support piece is fixedly arranged at the bottom of the shell, a control unit is arranged in the shell, a distance measurement adjusting module is arranged on one side of the bottom of the shell, and a driving piece is arranged on one side, far away from the distance measurement adjusting module, in the shell; the distance measurement adjusting module comprises a lifter and a lifting piece, the lifter is connected with the driving piece, and the lifter is used for controlling the lifting piece to move up and down; the detector is connected with the control unit and fixedly connected to one side of the bottom end of the lifting piece; and the micro distance sensor is connected with the control unit and is fixedly connected to one side of the bottom end of the lifting piece. The utility model discloses a little distance sensor measures the detector and is surveyed the distance on ground, and range finding adjustment module adjusts the detector and is surveyed the distance on ground according to little distance sensor measuring distance to reach the distance that can accurate measurement, ensure the accuracy of monitoring.
Description
Technical Field
The utility model relates to a nuclear radiation pollution monitoring devices technical field especially relates to an alpha, beta radioactivity monitoring facilities.
Background
The alpha and beta surface pollution measuring instrument is used for monitoring the degree of alpha or beta radioactive pollution on the surfaces of a worktable, a floor, a wall surface, hands, clothes, shoes and the like in a radioactive workplace and a laboratory, is one of the most widely used nuclear radiation monitoring instruments, and the calibration/verification of the surface pollution instrument is a necessary condition for the use of the surface pollution instrument. The calibration/verification of the surface contamination meter is carried out according to verification rules or related standards, and is mainly carried out domestically by JJG2041-89 & ltcalibration system for measuring alpha and beta surface contamination & gt, JJG 478-2016 & ltcalibration rules for alpha and beta surface contamination meters & gt, and the like.
The alpha and beta emission ranges of the radionuclide are short, so that the monitoring of the nuclide can be accurately monitored only by the distance of the detector material and the radionuclide which are in close contact, but the testing distance cannot be controlled because the testing environment is not fixed. Furthermore, the monitoring of such nuclides requires a relatively fixed test distance to ensure test stability.
SUMMERY OF THE UTILITY MODEL
To exist not enough among the prior art, the utility model provides an alpha, beta radioactivity monitoring facilities to solve traditional alpha, beta radioactivity monitoring facilities test distance uncontrollable technical problem among the correlation technique.
The utility model provides an alpha, beta radioactivity monitoring facilities, include:
the device comprises a shell, a support piece is fixedly arranged at the bottom of the shell, a control unit is arranged in the shell, a distance measurement adjusting module is arranged on one side of the bottom of the shell, a driving piece is arranged on one side, far away from the distance measurement adjusting module, in the shell, and the driving piece is connected with the control unit;
the distance measuring adjusting module comprises a lifter and a lifting piece, the lifter is connected with the driving piece, and the lifter is used for controlling the lifting piece to move up and down;
the detector is connected with the control unit, fixedly connected to one side of the bottom end of the lifting piece and used for detecting alpha and beta particles;
the micro distance sensor is connected with the control unit, fixedly connected to one side of the bottom end of the lifting piece, and used for measuring the distance between the detector and the ground to be measured.
Optionally, the lifting member includes a first rod and a second rod, the second rod is movably sleeved inside the first rod, the lifter is fixedly connected to one end of the first rod, and an extending end of the lifter is disposed inside the first rod and connected to the second rod;
the detector is fixedly connected to one end, far away from the lifter, of the second rod;
the micro-distance sensor is close to one end, far away from the lifter, of the second rod, and the detector is fixedly connected to the other end of the second rod.
Optionally, the detector includes scintillator, light shield layer, support frame, reflection stratum and silicon photomultiplier, the support frame is the semicircle arcuation for cylinder and inside cavity, the reflection stratum scribble to be located the inside of support frame, the inside one side that is close to the bottom of support frame is equipped with silicon photomultiplier, the support frame is kept away from one side of bottom is equipped with the scintillator, the top of scintillator is equipped with the light shield layer.
Optionally, the light-shielding layer is an aluminum film.
Optionally, the light-shielding layer is provided in at least two overlapping layers.
Optionally, the detector still includes the lid, the lid is inside to be equipped with rotatory screw thread, the week side of support frame be equipped with the inside rotatory screw thread assorted screw thread of lid.
Optionally, the scintillator is a composite scintillator, and the composite scintillator is composed of a silver-doped zinc sulfide scintillator and a plastic scintillator.
Optionally, the support is provided as a universal wheel, the universal wheel is coupled to a steering brake, and the steering brake is connected to the control unit and is used for controlling a steering angle of the universal wheel.
Optionally, the control unit is connected with a wireless unit, and the wireless unit is used for realizing signal interaction between the control unit and a cloud.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses in the technique, measure the detector and the distance of surveyed the ground through little distance sensor, range finding adjustment module adjusts the detector and the distance of surveyed the ground according to little distance sensor measuring distance to reach the distance that can accurate measurement, ensure the accuracy of monitoring.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the distance measurement adjustment module of the present invention;
FIG. 3 is a schematic diagram of the detector of the present invention;
fig. 4 is a schematic diagram of the control structure of the control unit of the present invention.
The reference numbers illustrate:
1. a housing; 2. a lifter; 3. a first lever; 4. a second lever; 5. a drive member; 6. a detector; 7. a micro-distance sensor; 8. a scintillator; 9. a light-shielding layer; 10. a support frame; 11. a reflective layer; 12. a silicon photomultiplier tube; 13. a cover body; 14. a thread; 15. a universal wheel.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more clearly understood, the following technical solutions of the present invention are further described with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4, the present invention provides an α, β radioactivity monitoring device, comprising:
the device comprises a shell 1, wherein a supporting piece is fixedly arranged at the bottom of the shell 1, a control unit is arranged in the shell 1, a distance measurement adjusting module is arranged at one side of the bottom of the shell 1, a driving piece 5 is arranged at one side, far away from the distance measurement adjusting module, in the shell 1, and the driving piece 5 is connected with the control unit;
the distance measuring adjusting module comprises a lifter 2 and a lifting piece, the lifter 2 is connected with the driving piece 5, and the lifter 2 is used for controlling the lifting piece to move up and down;
the detector 6 is connected with the control unit, the detector 6 is fixedly connected to one side of the bottom end of the lifting piece, and the detector 6 is used for detecting alpha and beta particles;
the micro distance sensor 7 is connected with the control unit, the micro distance sensor 7 is fixedly connected to one side of the bottom end of the lifting piece, and the micro distance sensor 7 is used for measuring the distance between the detector 6 and the ground to be measured.
In this embodiment, the driving member 5 is a rechargeable battery, the rechargeable battery is used to provide kinetic energy for α and β radioactivity monitoring devices, α has a weak particle penetration capability and a short range level in a substance, β particles have a penetration capability higher than that of α particles but a volume much smaller than that of α particles, so that a sufficient distance for measurement needs to be ensured during measurement, the control unit is connected to the lifter 2, the height of the micro distance sensor 7 at the bottom end of the lifter 2 and the height of the detector 6 preferably maintain a horizontal line, the micro distance sensor 7 measures the distance from the ground, and the control unit can control the distance measurement adjusting module to adjust the measurement distance according to the distance from the micro distance sensor 7 to the ground to ensure a stable measurement distance during monitoring, the supporting piece is used for supporting the shell 1, and meanwhile, the shell 1 and a surface to be measured keep a certain distance.
Optionally, the lifting member includes a first rod 3 and a second rod 4, the second rod 4 is movably sleeved inside the first rod 3, the lifter 2 is fixedly connected to one end of the first rod 3, and an extending end of the lifter 2 is arranged inside the first rod 3 and connected to the second rod 4;
the detector 6 is fixedly connected to one end, far away from the lifter 2, of the second rod 4;
the micro-distance sensor 7 is close to the detector 6 and is fixedly connected to one end, far away from the lifter 2, of the second rod 4.
In this embodiment, the extending end of the lifter 2 is used for moving up and down, so as to drive the second rod 4 sleeved inside the first rod 3 to move up and down, and the detector 6 and the micro-distance sensor 7 at one end of the second rod 4 far away from the lifter 2 realize the adjustment of the testing distance through the control of the lifter 2. The lifter 2 adopts a small linear reciprocating motor, the small linear reciprocating motor has the characteristics of small size, high precision and stable torque, the ground clearance of the detector 6 and the micro-distance sensor 7 at the front end can be accurately controlled, and the monitoring distance is preferably 5-10 mm.
Optionally, the detector 6 includes scintillator 8, light shield layer 9, support frame 10, reflection stratum 11 and silicon photomultiplier 12, support frame 10 is the semicircle arc form for cylinder and inside cavity, reflection stratum 11 scribbles and locates the inside of support frame 10, the inside one side that is close to the bottom of support frame 10 is equipped with silicon photomultiplier 12, support frame 10 keeps away from one side of bottom is equipped with scintillator 8, scintillator 8's top is equipped with light shield layer 9.
In the embodiment, the detector 6 is small in size, the support frame 10 is made of aluminum alloy, and the aluminum alloy has the characteristic of small density and is good in stability as a support; the light shielding layer 9 is used for shading treatment; the bottom of support frame 10 is seted up the rectangle osculum for set up silicon photomultiplier 12(SiPM), when the ray incides scintillator 8, can let 8 molecules of scintillator arouse, because the molecule that receives the arouse is in unstable state, can produce the phenomenon of arousing and get back to stable state, and the in-process of arousing can release energy, and then produces a large amount of photons. In order to collect the photons as much as possible by the SiPM, the reflective layer 11 is coated with MgO of an appropriate thickness, which has a reflective effect on light, and can emit the light in the direction of the SiPM at the rectangular opening, and finally, the photons are received by the SiPM and converted into electrical signals that can be read by subsequent circuits.
Alternatively, the light-shielding layer 9 is an aluminum film.
In this embodiment, the aluminum film has a better light-shielding performance and is cheaper than other substitutes such as a gold film, and is preferable for light-shielding treatment.
Alternatively, the light-shielding layer 9 is provided in at least two layers overlapping each other.
In this embodiment, the light shield layer 9 adopts thin aluminum film or gold film, etc., and the aluminum film or gold film can unavoidably have tiny aperture because of the problem of processing technology, and light accessible diffraction passes the aperture in thin aluminum film or the gold film, consequently will one deck of light shield layer 9 with another layer of light shield layer 9 overlaps the setting, and one deck light shield layer 9 and another layer the crisscross setting of orientation of light shield layer 9 sets up at least and overlaps crisscross two-layer and can realize preventing outside light to get into inside detector 6 through the diffraction, has avoided the interference of outside light effectively.
Optionally, the detector 6 further includes a cover 13, a rotating thread is provided inside the cover 13, and a thread 14 matching the rotating thread inside the cover 13 is provided on the circumferential side of the support frame 10.
In this embodiment, a cover 13 is disposed on the top of the detector 6, so as to further ensure that the detector 6 is not interfered by rays when not being monitored.
Optionally, the scintillator 8 is a composite scintillator 8, and the composite scintillator 8 is composed of a silver-doped zinc sulfide scintillator and a plastic scintillator.
In this embodiment, the silver-doped zinc sulfide scintillator 8(zns (ag) scintillator 88) has a small particle size, and is transparent on the bottom, and suitable for measuring heavy charged particles such as α particles in β and γ radiation background fields; the plastic scintillator 8 has good transmission characteristic and high transparency, can be made into a large-volume scintillator 8, has relatively stable performance and short scintillation attenuation time, is suitable for radiation measurement with higher intensity and can be used for realizing measurement of beta particles; the composite scintillator 8 is made of an EJ-444 composite scintillator 8 which is formed by uniformly coating ZnS (Ag) crystals on a thin EJ-212 plastic scintillator 8 and can be used for measuring the activity of alpha/beta particles.
Optionally, the support member is provided as a universal wheel 15, and the universal wheel 15 is coupled to a steering brake, which is connected to the control unit for controlling the steering angle of the universal wheel 15.
In this embodiment, the steering brake is used for controlling the universal wheel 15 to perform angular steering and movement according to the control signal of the control unit.
Optionally, the control unit is connected with a wireless unit, and the wireless unit is used for realizing signal interaction between the control unit and a cloud.
In this embodiment, the wireless unit is used for uploading the control information of the control unit to the cloud, and the user can also operate and control the monitoring device through the mobile phone APP to realize wireless interaction of signals.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (9)
1. An α, β radioactivity monitoring device, comprising:
the device comprises a shell, a support piece is fixedly arranged at the bottom of the shell, a control unit is arranged in the shell, a distance measurement adjusting module is arranged on one side of the bottom of the shell, a driving piece is arranged on one side, far away from the distance measurement adjusting module, in the shell, and the driving piece is connected with the control unit;
the distance measuring adjusting module comprises a lifter and a lifting piece, the lifter is connected with the driving piece, and the lifter is used for controlling the lifting piece to move up and down;
the detector is connected with the control unit, fixedly connected to one side of the bottom end of the lifting piece and used for detecting alpha and beta particles;
the micro distance sensor is connected with the control unit, fixedly connected to one side of the bottom end of the lifting piece, and used for measuring the distance between the detector and the ground to be measured.
2. The alpha and beta radioactivity monitoring device according to claim 1, wherein the lifting member comprises a first rod and a second rod, the second rod is movably sleeved inside the first rod, the lifter is fixedly connected with one end of the first rod, and the extending end of the lifter is arranged inside the first rod and connected with the second rod;
the detector is fixedly connected to one end, far away from the lifter, of the second rod;
the micro-distance sensor is close to one end, far away from the lifter, of the second rod, and the detector is fixedly connected to the other end of the second rod.
3. The α, β radioactivity monitoring device according to claim 1, wherein said detector comprises a scintillator, a light shielding layer, a supporting frame, a reflecting layer and a silicon photomultiplier, said supporting frame is a cylinder and has a hollow interior in a semicircular arc shape, said reflecting layer is coated inside said supporting frame, said silicon photomultiplier is disposed on one side of the interior of said supporting frame close to the bottom, said scintillator is disposed on one side of said supporting frame far away from said bottom, and said light shielding layer is disposed on the top of said scintillator.
4. The α, β radioactivity monitoring device according to claim 3, wherein said light shielding layer is an aluminum film.
5. The α, β radioactivity monitoring device according to claim 4, wherein said light shielding layer is provided as at least two layers which are overlapped and staggered.
6. The alpha and beta radioactivity monitoring device according to claim 3, wherein the detector further comprises a cover body, the cover body is internally provided with a rotating thread, and the periphery of the support frame is provided with a thread matched with the rotating thread in the cover body.
7. The alpha, beta radioactivity monitoring device according to claim 3, wherein the scintillator is a composite scintillator consisting of silver-doped zinc sulfide scintillator and plastic scintillator.
8. The alpha, beta radioactivity monitoring device according to any one of claims 1 to 7, wherein said support member is provided as a universal wheel, said universal wheel is coupled with a steering brake, said steering brake is connected with said control unit for controlling the steering angle of said universal wheel.
9. The alpha and beta radioactivity monitoring device according to claim 5, wherein the control unit is connected with a wireless unit, and the wireless unit is used for realizing signal interaction between the control unit and a cloud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123450215.8U CN217181250U (en) | 2021-12-31 | 2021-12-31 | Alpha, beta radioactivity monitoring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123450215.8U CN217181250U (en) | 2021-12-31 | 2021-12-31 | Alpha, beta radioactivity monitoring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217181250U true CN217181250U (en) | 2022-08-12 |
Family
ID=82732806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123450215.8U Expired - Fee Related CN217181250U (en) | 2021-12-31 | 2021-12-31 | Alpha, beta radioactivity monitoring equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217181250U (en) |
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2021
- 2021-12-31 CN CN202123450215.8U patent/CN217181250U/en not_active Expired - Fee Related
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Granted publication date: 20220812 |