Development of Time-of-Flight Polarized Neutron Imaging at the China Spallation Neutron Source

doi:10.1088/0256-307X/39/6/062901

Chin. Phys. Lett.

2022, Vol. 39

Issue (6): 062901 DOI: 10.1088/0256-307X/39/6/062901

NUCLEAR PHYSICS

Development of Time-of-Flight Polarized Neutron Imaging at the China Spallation Neutron Source

Ahmed Salman^1,2,3, Jianrong Zhou^1,2,3, Jianqing Yang^1,2,4, Junpei Zhang^1,2, Chuyi Huang^1,2,3, Fan Ye^1,2,5, Zecong Qin^1,2, Xingfen Jiang^1,2, Syed Mohd Amir^1,2, Wolfgang Kreuzpaintner^1,2, Zhijia Sun^1,2, Tianhao Wang^1,2*, and Xin Tong^1,2*

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

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.

Received: 07 March 2022 Published: 29 May 2022

PACS:	29.27.Hj	(Polarized beams)
	28.20.-v	(Neutron physics)
	61.05.Tv	(Neutron imaging; neutron tomography)
	87.50.Mn

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https://cpl.iphy.ac.cn/10.1088/0256-307X/39/6/062901 OR https://cpl.iphy.ac.cn/Y2022/V39/I6/062901

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	Ahmed Salman
	Jianrong Zhou
	Jianqing Yang
	Junpei Zhang
	Chuyi Huang
	Fan Ye
	Zecong Qin
	Xingfen Jiang
	Syed Mohd Amir
	Wolfgang Kreuzpaintner
	Zhijia Sun
	Tianhao Wang
	and Xin Tong

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