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Device for preparing radioactive sample

A radioactivity and sample technology, which is used in the preparation of test samples, protected chambers, nuclear engineering, etc., and can solve problems such as inability to use auxiliary tools for fine operation

Active Publication Date: 2020-02-28
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small amount of aliquoted samples, they only need to be packed in smaller chemical preparation containers, and cannot be finely manipulated with auxiliary tools in the glove box, so the samples need to be transported out of the glove box together with the chemical preparation containers, such as ventilation However, the dose level of aliquoted samples can still reach more than a dozen mSv

Method used

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  • Device for preparing radioactive sample
  • Device for preparing radioactive sample
  • Device for preparing radioactive sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 and figure 2 An apparatus for preparing radioactive samples is shown, comprising:

[0050] A radiation shielding body, the radiation shielding body includes a box body 11, one end of the box body 11 is an open end, and the open end is connected with a side door 17; the top of the box body 11 is provided with a group of openings, and the group of openings includes The first opening 12 and the second opening 13, the first opening 12 and the second opening 13 are all connected to the inside and outside space of the box body 11; the box body 11 and the side door 17 are all made of lead glass; The side wall of the box body 11 is provided with an opening 16, and a handle 23 is detachably connected to the side of the placement part 21. When the mobile carrier is located in the radiation shielding body, the handle 23 extends to the box body 11 through the opening 16 outside of

[0051] Mobile carrier, described mobile carrier comprises placing part 21, and ...

Embodiment 2

[0056] Such as figure 1 and image 3 As shown, on the basis of Embodiment 1, the hole group also includes a third hole 14, and the slot group also includes a second slot 24, and the second slot 24 is used to place a filter bottle; The distance between the second opening 13 and the third opening 14 is equal to the distance between the first locking slot 22 and the second locking slot 24 .

[0057] When the pH value of the solution meets the requirements, since the distance between the first slot and the second slot is equal to the distance between the second opening and the third opening, the second slot is just below the third opening . Use a solution filtration device to filter the sample in the sample bottle of the first card slot into the filter bottle placed in the second card slot, and observe the state of the sample after standing for a few minutes. If the sample is in a clear state, use the sample dispensing device to separate Filter the sample solution in the bottle...

Embodiment 3

[0062] Such as Figure 4As shown, on the basis of the above-mentioned embodiments, the handle 23 is provided with a groove 231, and the groove 231 is provided with an engaging plate 233, and a spring 232 is arranged between the groove 231 and the engaging plate 233, The upper surface of the engaging plate 233 is provided with a concave portion; the side of the placement portion 21 is provided with an engaging groove, and the top surface of the engaging groove is provided with a raised portion 25, and the raised portion 25 and the engaging plate 233 The recessed part on the upper part is matched; the bottom of the engaging groove is provided with a filling pad 28, and the filling pad 28 is made of flexible material.

[0063] By setting the clamping mechanism between the handle and the placement part, the quick disassembly and assembly of the handle on the placement part can be realized, which not only improves the experimental efficiency, but also reduces the disassembly space,...

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PUM

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Abstract

The invention discloses a device for preparing a radioactive sample. The device comprises a radiation shielding body and a moving carrier, wherein the radiation shielding body comprises a box body; one end of the box body is an open end, and the open end is connected with a side opening door; the top of the box body is provided with an opening group, the opening group comprises at least one opening, and the openings communicate with internal and external spaces of the box body; at least part of the box body and the side opening door is made of a radiation shielding material; and the moving carrier comprises a placing part, the placing part is provided with a clamping groove group, the clamping groove group comprises at least one clamping groove, and the clamping grooves are used for placing an experiment bottle. According to the device, the dosage level of the sample in an experiment process is significantly reduced to a few micro-sieverts, so that experiment operations of dissolutionof the radioactive sample, pH value adjustment and determination, filtration and separation of the sample and the like can be completed outside a glove box, an operator can complete the fine operations more efficiently, experiment time is shortened, time of exposure in a radiation environment is shortened, and the health and safety of experimenters are guaranteed.

Description

technical field [0001] The invention relates to the field of performance detection of nuclear fuel after irradiation, in particular to a device for preparing radioactive samples. Background technique [0002] In the field of post-irradiation performance testing of nuclear fuel, the separation and measurement of radionuclides is of great significance for improving the safety and economy of reactors and providing necessary data for reprocessing plants. [0003] Under normal circumstances, it is necessary to cut and sample the irradiated fuel elements first in the thermal chamber, and then put the required samples into the sample tube and transfer them to the radiochemical analysis laboratory for subsequent analysis. Usually, the amount of sample sampled by cutting and sampling in the hot chamber is much larger than the sample amount required for actual radiochemical analysis, so that it can be used for multiple analysis, so the radiation dose level of the sample in the sample ...

Claims

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Application Information

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IPC IPC(8): G01N1/28G21F7/04G21F7/02
CPCG01N1/28G21F7/04G21F7/02
Inventor 刘伟冯伟伟胡银陈云明刘琢艺王定娜李宛琼
Owner NUCLEAR POWER INSTITUTE OF CHINA
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