Performance optimization of the neutron-sensitive image intensifier used in neutron imaging

谭金昊 ¹宋玉收 ²周健荣 ³杨文钦 ³蒋兴奋 ³刘杰 ¹张超月 ¹周晓娟 ³夏远光 ³刘术林 ⁴闫保军 ⁴刘辉 ⁵王松林 ³赵豫斌 ³庄建 ³孙志嘉 ³陈元柏³

扫码查看

作者信息

1. Harbin Engineering University,Harbin 150000,China;Spallation Neutron Source Science Center,Dongguan 523803,China;State Key Laboratory of Particle Detection and Electronics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China
2. Harbin Engineering University,Harbin 150000,China
3. Spallation Neutron Source Science Center,Dongguan 523803,China;State Key Laboratory of Particle Detection and Electronics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China
4. State Key Laboratory of Particle Detection and Electronics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China
5. Key Laboratory of China Building Materials Industry for Special Photoelectric Materials,Institute of Special Glass Fiber and Optoelectronic Functional Materials,China Building Materials Academy,Beijing 100024,China
折叠

Abstract

As a non-destructive testing technology,neutron imaging plays an important role in various fields,including material science,nuclear engineering,and fundamental science.An imaging detector with a neutron-sensitive image intensifier has been developed and demonstrated to achieve good spatial resolution and timing resolution.However,the influence of the working voltage on the performance of the neutron-sensitive imaging intensifier has not been studied.To optimize the performance of the neutron-sensitive image intensifier at different voltages,experiments have been performed at the China Spallation Neutron Source(CSNS)neutron beamline.The change in the light yield and imaging quality with different voltages has been acquired.It is shown that the image quality benefits from the high gain of the microchannel plate(MCP)and the high accelerating electric field between the MCP and the screen.Increasing the accelerating electric field is more effective than increasing the gain of MCPs for the improvement of the imaging quality.Increasing the total gain of the MCP stack can be realized more effectively by improving the gain of the standard MCP than that of the nMCP.These results offer a development direction for image intensifiers in the future.

Key words

neutron detector/neutron imaging/microchannel plate/image intensifier

引用本文复制引用

基金项目

National Key R&D Program of China(2023YFC2206502)

National Key R&D Program of China(2021YFA1600703)

National Natural Science Foundation of China(12175254)

National Natural Science Foundation of China(12227810)

Guangdong-HongKong-Macao Joint Laboratory for Neutron Scattering Science and Technology()

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

段落导航