CN202631742U - Sample chamber for testing radioactive samples - Google Patents
Sample chamber for testing radioactive samples Download PDFInfo
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- CN202631742U CN202631742U CN2012202813455U CN201220281345U CN202631742U CN 202631742 U CN202631742 U CN 202631742U CN 2012202813455 U CN2012202813455 U CN 2012202813455U CN 201220281345 U CN201220281345 U CN 201220281345U CN 202631742 U CN202631742 U CN 202631742U
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Abstract
The utility model provides a sample chamber for testing radioactive samples. The sample chamber is arranged between an upper lead chamber and a lower lead chamber, and comprises a plate drawing component, a plate guide component and a dark box component; the plate drawing component mainly comprises a drawing plate and a cover plate positioned at the end part of the drawing plate; the plate guide component is of a concave structure, and the concave part is a guide groove; the dark box component has a vertical hollow structure with an open end; the connection relationship of the components is that the upper surface of the plate guide component is fixedly connected with the lower surface of the upper lead chamber, so that the upper part of the guide groove is covered by the lower surface of the upper lead chamber, and the lower surface of the plate guide component is fixedly connected with the lower lead chamber; the open end of the dark box component is fixedly connected with rear walls of the upper lead chamber and the lower lead chamber, and a hollow cavity in the dark box component is communicated with the tail end of the guide groove; and the drawing plate is arranged in the guide groove, a cover plate at the front end of the plate drawing component is positioned at the front end of the guide grove, and the height of the cover plate is greater than the height of the guide groove. The sample chamber provided by the utility model can meet the measurement of a thick sample and a thin sample.
Description
Technical field
The utility model relates to a kind of sample chamber that is used to test radioactive sample, belongs to the radioactivity survey technical field.
Background technology
At present, adopting " the low background α/β measuring instrument " of vitriol chamber shielding anticoincidence technique is the device that is used to measure the total α of radioactive sample and total β activity.It is made up of shielding vitriol chamber, low background α/β measuring instrument and computing machine, is connected with data line with cable between low background α/β measuring instrument and the computing machine.The shielding vitriol chamber is made up of sample chamber, last vitriol chamber and following vitriol chamber; Between the sample chamber is placed in the middle, be used to place sample; The main detector that is used for measuring samples is housed in the last vitriol chamber, shielded probe (claiming the anticoincidence detector again) is housed in the following vitriol chamber, be used to shield cosmic rays; The function of low background α/β measuring instrument mainly is the high and low pressure power supply to be provided, to gather the sample data and to deliver to computing machine through interface and data line to detector in the vitriol chamber; Computing machine is carried out operation and data processing, the demonstration as a result etc. of low background α/β measuring instrument through the operation of special software follow procedure.This device has the advantages that background is low, highly sensitive, the sample chamber structure is suitable for the measurement of thin appearance legal system appearance.
Sample preparation flow processs such as a thin appearance legal system appearance is measured, and sample need pass through ashing, evaporate, weigh, the equipment of use is many, the sample preparation cycle is long.Under wartime nuclear condition or the scene of nuclear accident or burst nuclear incident, be difficult to accomplish the measurement of radioactive sample in enormous quantities in the short time.Based under the nuclear condition or the radioactive contamination controlling level of nuclear accident or burst nuclear incident scene and action horizontal target; Can adopt thick appearance method measuring samples specific activity; Its major advantage is that the equally distributed sample of radioactivity does not need ashing, evaporates and weighs; Directly sample preparation, shop appearance are measured, and provide result's (specific activity) rapidly.But therefore present shielding vitriol chamber can not be used for thick appearance method and measure because it can shelve the restriction of thickness of sample.
The utility model content
The utility model provides a kind of sample chamber that is used to test radioactive sample, in low background α/β measuring instrument, uses this sample chamber can satisfy the measurement to thick sample and thin sample.
The technical scheme that realizes the utility model is following:
A kind of sample chamber that is used to test radioactive sample, this sample chamber place between vitriol chamber and the following vitriol chamber, wherein: this sample chamber comprises pumping board assembly, guide plate assembly and magazine assembly; Said pumping board assembly mainly is made up of pumping board and the cover plate that is positioned at the pumping board front end; Said guide plate assembly is a concave structure, and its depression position is called guide groove; The stereo hollow structure that said magazine assembly is an end opening;
The annexation of above-mentioned each structure: the upper surface of guide plate assembly and the lower surface of last vitriol chamber are connected, thereby top of guide slot is covered by last vitriol chamber lower surface, and guide plate assembly lower surface is connected with following vitriol chamber; Magazine assembly openend is fixed on the rear wall of upper and lower vitriol chamber, and the hollow cavity on the magazine assembly is communicated with the end of guide groove; Pumping board is located in the guide groove, and the cover plate of pumping board assembly front end is positioned at the front end of guide groove, and the height of cover plate is greater than the height of guide groove;
Pumping board is provided with circular shoulder hole, and the height of said shoulder hole is 15mm, and the thickness of said guide plate assembly is 17mm.
Further, the utility model sample chamber also comprises the Anchor plate kit of being made up of pressing plate and pressing plate rubber blanket; Said pressing plate rubber blanket is identical with platen shape, and it is fixed on the medial surface of said pressing plate, and said Anchor plate kit is fixed on the antetheca of the upper and lower vitriol chamber of guide groove front opening.
Preferably, the utility model guide plate assembly mainly is made up of left guide plate, right guide plate and base plate.
Further, the left and right guide plate of the said guide plate assembly of the utility model passes through bolt on last vitriol chamber and following vitriol chamber.
Preferably, the said magazine assembly of the utility model comprises at the bottom of magazine body, the magazine and the magazine cover cap; Wherein said magazine body is the rectangular structure that has hollow cavity, is located at the bottom of the magazine on the rear end of hollow cavity, and the front end of hollow cavity is fixed on the rear wall of upper and lower vitriol chamber, and guarantees that the magazine hollow cavity communicates with the rear end of said guide groove; Said magazine body top is provided with through hole, and said magazine cover cap is positioned at the top of magazine body and can covers the through hole of magazine body top fully.
Further, the said magazine of the utility model also comprises the magazine rubber blanket, and said magazine rubber blanket is arranged between the rear wall of front end and upper and lower vitriol chamber of hollow cavity on the magazine.
Further, the said pumping board assembly of the utility model also comprises handle, and said handle is fixed on the pumping board front end.
Further, the guide groove of the said guide plate assembly of the utility model is provided with slide rail, and the pumping board rear end is provided with positioning sliding block simultaneously.
Beneficial effect
The utility model sample chamber is keeping under the constant prerequisite of original instrument performance; Through the degree of depth of deepening sample cell and the thickness of setting the guide plate assembly; Make the sample chamber of the utility model can satisfy measurement of thick appearance method and the measurement of thin appearance method simultaneously; Therefore it realizes the quick measurement of radioactive sample in enormous quantities, the task performance of lifting means applicable under the nuclear condition or nuclear accident or burst nuclear incident scene.
Description of drawings
Fig. 1 is the structural scheme of mechanism of vitriol chamber and the shielding vitriol chamber of following vitriol chamber formation on the utility model fit on.
1-pumping board assembly wherein, 2-guide plate assembly, 3-Anchor plate kit, 4-magazine assembly, vitriol chamber under the 5-, the last vitriol chamber of 6-;
Fig. 2 is the utility model pumping board modular construction synoptic diagram;
Wherein, 11-pumping board, 12-cover plate, 13-handle;
Fig. 3 is the assembling synoptic diagram of the utility model pumping board assembly, guide plate assembly and Anchor plate kit;
Wherein, 21-left side guide plate, the right guide plate of 22-, 23-base plate; The 31-pressing plate, 32-pressing plate rubber blanket;
Fig. 4 is the utility model magazine modular construction synoptic diagram;
Wherein, 41-magazine body, at the bottom of the 42-magazine, 43-magazine cover cap, 44-magazine rubber blanket.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is further elaborated.
The sample chamber that is used to test radioactive sample as shown in Figure 1, that the utility model proposes, this sample chamber places between vitriol chamber 5 and the following vitriol chamber 6, and this sample chamber comprises pumping board assembly 1, guide plate assembly 2 and magazine assembly 4; Said pumping board assembly 1 mainly is made up of pumping board 11 and the cover plate 12 that is positioned at the pumping board end, and is as shown in Figure 2; Said guide plate assembly 2 is a concave structure, and its depression position is called guide groove; Said magazine assembly 4 is the stereo hollow structure of an end opening.
The annexation of above-mentioned each structure: guide plate assembly 2 upper surfaces are close to and are fixed on the lower surface of vitriol chamber 6, thereby top of guide slot is covered by last vitriol chamber 6 part lower surfaces, and guide plate assembly 2 lower surfaces are connected with following vitriol chamber 5; Magazine assembly 4 is fixed on the rear wall of upper and lower vitriol chamber, and the hollow cavity on the magazine assembly is communicated with the end of guide groove; Pumping board assembly 1 is located in the guide groove, and the cover plate 12 of pumping board assembly 1 front end is positioned at the front end of guide groove, and the height of cover plate 12 is greater than the height of guide groove; Pumping board assembly 1 can and be pulled out in the cofree propelling of guide groove, and when pumping board assembly 1 was in advanced state, the cover plate 12 on the pumping board assembly 1 was realized the conflict of guide groove other end opening is connected.
The pumping board 11 of pumping board assembly 1 is provided with one and is used to shelve the circular ladder hole of sample disc, and the height of this shoulder hole is 15mm, and the thickness of said guide plate assembly is 17mm, and the width of guide plate assembly is not less than 80mm.
When utilizing the utility model sample chamber to carry out thick sample measurement process; Pumping board assembly 1 is pulled out from guide plate assembly 2; The sample disc of placing thick sample is shelved on the stepped convex edge of sample cell lateral edges; Because the height of sample cell is designed to 15mm, this highly not only can realize can also satisfying the measurement to thick sample to the measurement of thin sample.Sample with required test is placed on the sample disc then, and pumping board assembly 1 is advanced in the guide plate, so just can begin sample is measured; Simultaneously because pumping board 11 is longer, can expose one section after pushing the location, so will its sealing, exhaust, lucifuge cover be got up with magazine assembly 4.
In the process that sample is measured, must prevent the entering of extraneous light, make the sample chamber be in dark state; Therefore the utility model sample chamber also comprises the Anchor plate kit of being made up of pressing plate 31 and pressing plate rubber blanket 32 3, and is as shown in Figure 3; Said pressing plate rubber blanket 32 is identical with pressing plate 31 shapes, and it is fixed on the medial surface of said pressing plate 31, and said Anchor plate kit 3 is fixed on the antetheca of upper and lower vitriol chamber of guide groove front opening, and the open-ended generation of said guide groove is not blocked.Through the opening on pressing plate 31 and the pressing plate rubber blanket 32 is not blocked guide groove, so just do not influence the propelling of pumping board assembly 1 in guide groove and pull out; Be under the advanced state at pumping board assembly 1 simultaneously, the cover plate 12 clamping platen rubber blankets 32 on the pumping board assembly 1 utilize the good realization of elasticity of rubber blanket can be to the sealing of guide groove opening.
For ease of processing, reach simultaneously and practice thrift the low purpose of cost, the utility model guide plate assembly 2 mainly is made up of left guide plate 21, right guide plate 22 and base plate 23, and is as shown in Figure 3; Leave spacing between the wherein left and right guide plate, base plate 23 is fixed on the below of left and right guide plate and covers the spacing between the left and right guide plate fully, makes to form a rectangle guide groove between left and right guide plate and the base plate.Simultaneously bolt is set, realizes guide plate assembly 2 is fixed on vitriol chamber and the following vitriol chamber in left and right guide plate edge.
The utility model when magazine assembly 4 be one fully the sealing assembly the time; Owing to be that the gap that closely is slidingly matched is very little between pumping board 11 and the guide groove; When holding pumping board handle and push hard pumping board 11; Internal gas is discharged rapidly, can make 1 propelling of pumping board assembly like this or pull out guide plate assembly 2 to become comparatively difficult; Therefore the said magazine assembly of the utility model comprises at the bottom of magazine body 41, the magazine 42 and magazine cover cap 43, and is as shown in Figure 4; Wherein said magazine body 41 is for having the rectangular structure of hollow cavity, and 42 are located on the rear end of hollow cavity at the bottom of the magazine, and the front end of hollow cavity is fixed on the rear wall of upper and lower vitriol chamber, and guarantees to communicate between magazine hollow cavity and the guide groove rear end; Said magazine body 41 tops are provided with a plurality of through holes that make its cavity and external communications, and said magazine cover cap 43 is positioned at the top of magazine body 41 and can covers the through hole of magazine body 41 tops fully.The utility model utilizes this magazine assembly 4; Can avoid light to enter into guide groove through cassette cover 43 from the through hole of magazine body top; Simultaneously inner can to carry out air mutual with the outside because the existence of through hole has guaranteed magazine assembly 4; Therefore adopt this magazine assembly under the situation that does not influence sample measurement, can be so that pumping board assembly 1 be pulled out and is pushed from guide plate assembly 2.Simultaneously the utility model better seals between magazine assembly 4 and the guide plate assembly 2 in order to guarantee, on magazine, also is provided with a magazine rubber blanket 44, and said magazine rubber blanket 44 is arranged between the rear wall of front end and upper and lower vitriol chamber of hollow cavity on the magazine 4.
In order to make operating personnel advance and pull out pumping board assembly 1 more easily, the utility model is provided with handle at the pumping board front end simultaneously.Simultaneously on the guide groove of guide plate assembly 2, be provided with slide rail, so just can be so that pulling out and pushing of pumping board assembly 1 becomes more convenient; Pumping board 11 rear ends are provided with positioning sliding block simultaneously, can guarantee that like this pumping board 11 is drawn out Shi Buhui and drops out, accurately location and slip of assurance and sample cell and main detector when pushing.
Each parts materials used in table 1 sample chamber
In sum, more than being merely the preferred embodiment of the utility model, is not the protection domain that is used to limit the utility model.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. sample chamber that is used to test radioactive sample, this sample chamber places between vitriol chamber and the following vitriol chamber, it is characterized in that: this sample chamber comprises pumping board assembly, guide plate assembly and magazine assembly; Said pumping board assembly mainly is made up of pumping board and the cover plate that is positioned at the pumping board front end; Said guide plate assembly is a concave structure, and its depression position is called guide groove; The stereo hollow structure that said magazine assembly is an end opening;
The annexation of above-mentioned each structure: the upper surface of guide plate assembly and the lower surface of last vitriol chamber are connected, thereby top of guide slot is covered by last vitriol chamber lower surface, and guide plate assembly lower surface is connected with following vitriol chamber; Magazine assembly openend is fixed on the rear wall of upper and lower vitriol chamber, and the hollow cavity on the magazine assembly is communicated with the end of guide groove; Pumping board is located in the guide groove, and the cover plate of pumping board assembly front end is positioned at the front end of guide groove, and the height of cover plate is greater than the height of guide groove;
Pumping board is provided with circular shoulder hole, and the height of said shoulder hole is 15mm, and the thickness of said guide plate assembly is 17mm.
2. the radiometric sample chamber of thick sample that is used for according to claim 1, it is characterized in that: said sample chamber also comprises the Anchor plate kit of being made up of pressing plate and pressing plate rubber blanket; Said pressing plate rubber blanket is identical with platen shape, and it is fixed on the medial surface of said pressing plate, and said Anchor plate kit is fixed on the antetheca of upper and lower vitriol chamber of guide groove front opening.
3. the radiometric sample chamber of thick sample that is used for according to claim 1, it is characterized in that: said guide plate assembly mainly is made up of left guide plate, right guide plate and base plate.
4. the radiometric sample chamber of thick sample that is used for according to claim 3 is characterized in that: the left and right guide plate of said guide plate assembly passes through bolt on last vitriol chamber and following vitriol chamber.
5. the radiometric sample chamber of thick sample that is used for according to claim 1, it is characterized in that: said magazine comprises at the bottom of magazine body, the magazine and the magazine cover cap; Wherein said magazine body is the rectangular structure that has hollow cavity, is located at the bottom of the magazine on the rear end of hollow cavity, and the front end of hollow cavity is fixed on the rear wall of upper and lower vitriol chamber, and guarantees that the magazine hollow cavity communicates with the rear end of said guide groove; Said magazine body top is provided with through hole, and said magazine cover cap is positioned at the top of magazine body and can covers the through hole of magazine body top fully.
6. the radiometric sample chamber of thick sample that is used for according to claim 5, it is characterized in that: said magazine also comprises the magazine rubber blanket, said magazine rubber blanket is arranged between the rear wall of front end and upper and lower vitriol chamber of hollow cavity on the magazine.
7. the radiometric sample chamber of thick sample that is used for according to claim 1, it is characterized in that: said pumping board assembly also comprises handle, and said handle is fixed on the pumping board front end.
8. the radiometric sample chamber of thick sample that is used for according to claim 1, it is characterized in that: the guide groove of said guide plate assembly is provided with slide rail, and said pumping board rear end is provided with positioning sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202813455U CN202631742U (en) | 2012-06-14 | 2012-06-14 | Sample chamber for testing radioactive samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202813455U CN202631742U (en) | 2012-06-14 | 2012-06-14 | Sample chamber for testing radioactive samples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202631742U true CN202631742U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202813455U Expired - Fee Related CN202631742U (en) | 2012-06-14 | 2012-06-14 | Sample chamber for testing radioactive samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202631742U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217702A (en) * | 2013-04-16 | 2013-07-24 | 山东省科学院海洋仪器仪表研究所 | Low background gamma energy dispersive spectrometer for ocean radioactive measurement |
| CN107290377A (en) * | 2017-06-30 | 2017-10-24 | 中国原子能科学研究院 | A kind of sample disc positioner of full-reflection X XRF |
| CN107749315A (en) * | 2017-11-23 | 2018-03-02 | 武汉瑞福宁科技有限公司 | Radionuclide is got it filled lead box |
| CN107884807A (en) * | 2017-11-22 | 2018-04-06 | 同方威视技术股份有限公司 | Automatic sample-changing equipment based on gamma spectrometer |
| CN108226986A (en) * | 2017-11-27 | 2018-06-29 | 中核控制系统工程有限公司 | A kind of anticoincidence device for being suitable for four road Low background α, β measuring instruments |
-
2012
- 2012-06-14 CN CN2012202813455U patent/CN202631742U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217702A (en) * | 2013-04-16 | 2013-07-24 | 山东省科学院海洋仪器仪表研究所 | Low background gamma energy dispersive spectrometer for ocean radioactive measurement |
| CN107290377A (en) * | 2017-06-30 | 2017-10-24 | 中国原子能科学研究院 | A kind of sample disc positioner of full-reflection X XRF |
| CN107290377B (en) * | 2017-06-30 | 2023-08-18 | 中国原子能科学研究院 | Sample tray positioning device of total reflection X fluorescence spectrometer |
| CN107884807A (en) * | 2017-11-22 | 2018-04-06 | 同方威视技术股份有限公司 | Automatic sample-changing equipment based on gamma spectrometer |
| CN107884807B (en) * | 2017-11-22 | 2024-05-10 | 同方威视技术股份有限公司 | Automatic sample changing equipment based on gamma energy spectrometer |
| CN107749315A (en) * | 2017-11-23 | 2018-03-02 | 武汉瑞福宁科技有限公司 | Radionuclide is got it filled lead box |
| CN108226986A (en) * | 2017-11-27 | 2018-06-29 | 中核控制系统工程有限公司 | A kind of anticoincidence device for being suitable for four road Low background α, β measuring instruments |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150614 |
|
| EXPY | Termination of patent right or utility model |