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Digital imaging plate for neutron photography nondestructive testing of radioactive sample and radioactive sample neutron photography nondestructive testing method

A digital imaging and non-destructive testing technology, which is applied in the use of radiation for material analysis, etc., can solve the problems affecting the data intensity accuracy of the digital imaging plate, and the difficulty of accurately controlling the transfer time of the neutron conversion screen, so as to improve the ability of non-destructive testing and improve the accuracy Effect

Active Publication Date: 2021-06-22
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

However, in the process of transferring the neutron conversion screen to the darkroom, it is difficult to precisely control the time of transferring the neutron conversion screen at exactly the same time, and the attenuation of the neutron activation intensity will affect the accuracy of the imaging data intensity of the digital imaging panel

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  • Digital imaging plate for neutron photography nondestructive testing of radioactive sample and radioactive sample neutron photography nondestructive testing method
  • Digital imaging plate for neutron photography nondestructive testing of radioactive sample and radioactive sample neutron photography nondestructive testing method
  • Digital imaging plate for neutron photography nondestructive testing of radioactive sample and radioactive sample neutron photography nondestructive testing method

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[0042] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiment is one embodiment of the present invention, but not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present application shall have the usual meanings understood by those skilled in the field of the present invention. If the descriptions such as "first" and "second" are involved in the whole text, the descriptions such as "first" and "second" are only used to dis...

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Abstract

The invention discloses a digital imaging plate for neutron photography nondestructive testing of a radioactive sample, a manufacturing method of the digital imaging plate and a radioactive sample neutron photography nondestructive testing method. The digital imaging plate comprises a substrate and a digital imaging plate imaging film arranged on the substrate. The digital imaging plate imaging film includes a cured adhesive bonded to the substrate, pure metal powder and barium fluorobromide crystals, wherein the pure metal powder and the barium fluorobromide crystals are dispersed in the adhesive. The barium fluorobromide crystals in the digital imaging plate can be continuously exposed through secondary particles released by continuous decay of pure metal powder activated by transmission neutrons in the digital imaging plate, so that recorded neutron beam intensity distribution information of a transmission sample is recorded in the barium fluorobromide crystals; a digital imaging plate scanner is used for scanning the digital imaging plate to obtain neutron photographing detection imaging of the radioactive sample, the process of transferring a neutron conversion screen to a darkroom and making the neutron conversion screen closely contact with a film or the digital imaging plate is omitted, and the precision of the imaging data intensity of the digital imaging plate is improved.

Description

technical field [0001] The invention relates to the technical field of radioactive material detection, in particular to a digital imaging plate for neutron radiography nondestructive detection of radioactive samples and a manufacturing method thereof, and a neutron radiography nondestructive detection method of radioactive samples. Background technique [0002] Neutron radiography is a non-destructive testing technique. Due to the advantages of deep penetration of neutrons and the ability to distinguish between isotopes and adjacent elements, neutron radiography has a wide range of applications. Neutron photography can be divided into direct neutron imaging method and indirect neutron imaging method. [0003] The direct neutron imaging method uses a detector system composed of a neutron conversion screen and a CCD camera to obtain neutron photographic detection information of the sample. However, since the radioactivity of radioactive samples will expose and damage the CCD...

Claims

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Application Information

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IPC IPC(8): G01N23/05
CPCG01N23/05
Inventor 陈东风魏国海孙凯刘蕴韬贺林峰武梅梅李正耀焦学胜郝丽杰李玉庆韩松柏王洪立王雨
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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