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

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

Active Publication Date: 2022-07-01
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 and nondestructive testing method for neutron photography of radioactive samples
  • Digital imaging plate and nondestructive testing method for neutron photography of radioactive samples
  • Digital imaging plate and nondestructive testing method for neutron photography of radioactive samples

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Embodiment Construction

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

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

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Abstract

The invention discloses a digital imaging plate used for radioactive sample neutron photography nondestructive testing, a manufacturing method thereof, and a radioactive sample neutron photography nondestructive testing method. The digital imaging plate includes: a base and a digital imaging plate imaging film arranged on the base. The digital imaging plate imaging film includes: a cured adhesive bonded to a substrate; pure metal powder and barium fluorobromide crystals dispersed in the adhesive. The secondary particles released by the continuous decay of pure metal powder activated by transmission neutrons in the digital imaging plate can continue to expose the barium fluoride bromide crystals in the digital imaging plate, so as to record the neutron beam intensity distribution information of the transmission sample. Recorded into barium fluorobromide crystals, and scanning the digital imaging plate with a digital imaging plate scanner can obtain neutron photographic detection imaging of radioactive samples, eliminating the need to transfer the neutron conversion screen to a dark room and close it with film or digital imaging plate The process of contact improves the precision of the imaging data intensity of the digital imaging plate.

Description

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

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Application Information

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Patent Type & Authority Patents(China)
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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