Sodium-cooled-fast-reactor-structure-based material irradiation capsule

A technology of structural materials and sodium-cooled fast reactors, applied in the fields of material analysis using radiation, irradiation devices, nuclear engineering, etc., can solve the problems of no irradiation tanks found, limited public literature, etc., to increase the number of samples, match well, Ease of use

Inactive Publication Date: 2014-12-24
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Due to the particularity of the structure of the sodium-cooled fast reactor, the first consideration should be the irradiation tank for off-line measurement. However, since the technology of the sodium-cooled fast reactor is still in developmen...

Method used

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  • Sodium-cooled-fast-reactor-structure-based material irradiation capsule

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Embodiment

[0023] The sodium-cooled fast reactor structural material irradiation tank includes an outer cylinder 2, an inner cylinder 5 and a central tube 13; The upper cover sheet 10, the lower cover sheet 18 and the upper cover sheet 10 are all porous plates; the central tube 13 is located in the center of the inner cylinder body 5, and its two ends are respectively fixed at the center positions of the lower cover sheet 18 and the upper cover sheet 10, and the central tube The two ends of 13 are respectively provided with an upper end plug 11 and a lower end plug 19, and the central tube 13 has a hole in the tube wall; a sample tube placement area is provided between the central tube 13 and the inner cylinder 5; a joint 4 is provided at the open end of the inner cylinder 5, The joint 4 is a hollow structure, the bottom end of the joint 4 is sleeved inside the inner cylinder 5, the inner edge of the bottom end of the joint 4 is chamfered, the top of the joint 4 is open, and the inner wal...

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Abstract

The utility model relates to a measurement apparatus using nuclear radiation inside a reactor to measure a material irradiation performance. In order to solve a problem of lack of convenient and applicable sodium-cooled-fast-reactor-structure-based material irradiation capsule, the invention provides a sodium-cooled-fast-reactor-structure-based material irradiation capsule comprising an outer cylinder body, an inner cylinder body, and a central tube; and the central tube is arranged at the center inside the inner cylinder body. A sample placing region is arranged between the central tube and the inner cylinder body. A joint is arranged at the opening end of the inner cylinder body. The outer cylinder body is arranged outside the integrated structure; and an outer end cover is arranged at the top end. The inside of the inner cylinder body is filled with liquid sodium; and space between the inner cylinder body and the outer cylinder body is filled with helium. The connecting way is realized by welding. With the sodium-cooled-fast-reactor-structure-based material irradiation capsule, the problem of lack of convenient and applicable sodium-cooled-fast-reactor-structure-based material irradiation capsule in the prior art can be solved. The minimum sample number required by the standard testing requirement can be met by one-time test. Moreover, the structure is design reasonably; and the capsule can be used conveniently and has the non-on-line test parameter monitoring function.

Description

technical field [0001] The invention relates to a measuring device for measuring the radiation properties of materials by using reactor nuclear radiation, in particular to a sodium-cooled fast reactor structural material irradiation tank. Background technique [0002] The radiation performance of materials is one of the most important performances of materials in nuclear power plants. New materials used in any radiation site in nuclear power plants need to undergo radiation tests to master their radiation performance. [0003] The fast neutron field produced by nuclear fission in the fast neutron research reactor provides an irradiation site for accelerating the completion of the nuclear material irradiation test. To carry out material irradiation tests, it is necessary to combine the irradiation conditions of the research reactor and develop a unique irradiation device according to the specific requirements of the sample size, irradiation temperature and damage dose of the...

Claims

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Application Information

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IPC IPC(8): G21K5/08G01N23/02
Inventor 徐西安黄晨张培升张汝娴马勇哲徐宝玉
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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