NUCLEAR PHYSICS |
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Development of Time-of-Flight Polarized Neutron Imaging at the China Spallation Neutron Source |
Ahmed Salman1,2,3, Jianrong Zhou1,2,3, Jianqing Yang1,2,4, Junpei Zhang1,2, Chuyi Huang1,2,3, Fan Ye1,2,5, Zecong Qin1,2, Xingfen Jiang1,2, Syed Mohd Amir1,2, Wolfgang Kreuzpaintner1,2, Zhijia Sun1,2, Tianhao Wang1,2*, and Xin Tong1,2* |
1Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 2Spallation Neutron Source Science Center, Dongguan 523803, China 3University of Chinese Academy of Sciences, Beijing 100049, China 4Xi'an Research Institute of Hi-Tech, Xi'an 710025, China 5College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
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Cite this article: |
Ahmed Salman, Jianrong Zhou, Jianqing Yang et al 2022 Chin. Phys. Lett. 39 062901 |
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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.
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Received: 07 March 2022
Published: 29 May 2022
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