Development of Time-of-Flight Polarized Neutron Imaging at the China Spallation Neutron Source. (1st June 2022)

• Record Type: Journal Article
• Authors: Salman, Ahmed; Zhou 周, Jianrong 健荣; Yang 杨, Jianqing 建清; Zhang 张, Junpei 俊佩; Huang 黄, Chuyi 楚怡; Ye 叶, Fan 凡; Qin 秦, Zecong 泽聪; Jiang 蒋, Xingfen 兴奋; Amir, Syed Mohd; Kreuzpaintner, Wolfgang; Sun 孙, Zhijia 志嘉; Wang 王, Tianhao 天昊; Tong 童, Xin 欣
• Is Part Of: Chinese physics letters. Volume 39:Number 6(2022)
• Publication Date: 2022-06-01
• Subjects: Physics -- Periodicals; Electronic journals; 530.05
• DOI: 10.1088/0256-307X/39/6/062901
• Languages: English
• ISSNs: 0256-307X

Abstract

Abstract : A time-of-flight polarized neutron imaging setup was realized by integrating an in situ pumped polarized 3 He spin filter and energy dispersive neutron camera on the neutron technique development beamline (BL-20) of the China Spallation Neutron Source (CSNS). Test experiments were performed with a solenoid with aluminum wire as a sample. These demonstrated that polarized radiography with a field of view in diameter 2.0 cm at different wavelengths can be obtained. The wavelength-dependent polarization was used to distinguish the neutron polarization behavior for different positions inside and outside the solenoid. The results of this work show the possibility of applying the technique at CSNS and marks a milestone for future polarized neutron imaging developments.