First neutron Bragg-edge imaging experimental results at CSNS*

Author:

Chen Jie,Tan Zhijian,Liu Weiqiang,Deng Sihao,Wang Shengxiang,Wang Liyi,Zheng Haibiao,Lu Huaile,Shen Feiran,Hao Jiazheng,Zhou Xiaojuan,Zhou Jianrong,Sun Zhijia,He Lunhua,Liang Tianjiao

Abstract

The neutron Bragg-edge imaging is expected to be a new non-destructive energy-resolved neutron imaging technique for quantitatively two-dimensional or three-dimensional visualizing crystallographic information in a bulk material, which could be benefited from pulsed neutron source. Here we build a Bragg-edge imaging system on the General Purpose Powder Diffractometer at the China Spallation Neutron Source. The residual strain mapping of a bent Q235 ferrite steel sample has been achieved with a spectral resolution of 0.15% by the time-of-flight neutron Bragg-edge imaging on this system. The results show its great potential applications in materials science and engineering.

Publisher

IOP Publishing

Subject

General Physics and Astronomy

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