中国物理B ›› 2021, Vol. 30 ›› Issue (9): 96106-096106.doi: 10.1088/1674-1056/ac0da7

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First neutron Bragg-edge imaging experimental results at CSNS

Jie Chen(陈洁)1,2,4,†, Zhijian Tan(谭志坚)1,2, Weiqiang Liu(刘玮强)1,2,4, Sihao Deng(邓司浩)1,2, Shengxiang Wang(王声翔)1,2, Liyi Wang(王立毅)1,2, Haibiao Zheng(郑海彪)1,2, Huaile Lu(卢怀乐)1,2, Feiran Shen(沈斐然)2,3,4, Jiazheng Hao(郝嘉政)1,2, Xiaojuan Zhou(周晓娟)1,2, Jianrong Zhou(周健荣)1,2, Zhijia Sun(孙志嘉)1,2, Lunhua He(何伦华)2,3,‡, and Tianjiao Liang(梁天骄)1,2   

  1. 1 Institute of High Energy Physics, Chinese Academy of Sciences(CAS), Beijing 100049, China;
    2 Spallation Neutron Source Science Center(SNSSC), Dongguan 523803, China;
    3 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    4 University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2021-04-23 修回日期:2021-06-13 接受日期:2021-06-23 出版日期:2021-08-19 发布日期:2021-08-30
  • 通讯作者: Jie Chen, Lunhua He E-mail:chenjie@ihep.ac.cn;lhhe@iphy.ac.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant Nos. 2017YFB0701903 and 2016YFA0401502), the National Natural Science Foundation of China (Grant No. 12041202), the Youth Innovation Promotion Association of Chinese Academy of Sciences (Grant No. 2017023), the Guangdong Natural Science Foundation, China (Grant No. 2016A030313129), and the Department of Science and Technology of Guangdong Province under grant project of energy-resolved neutron imaging instrument.

First neutron Bragg-edge imaging experimental results at CSNS

Jie Chen(陈洁)1,2,4,†, Zhijian Tan(谭志坚)1,2, Weiqiang Liu(刘玮强)1,2,4, Sihao Deng(邓司浩)1,2, Shengxiang Wang(王声翔)1,2, Liyi Wang(王立毅)1,2, Haibiao Zheng(郑海彪)1,2, Huaile Lu(卢怀乐)1,2, Feiran Shen(沈斐然)2,3,4, Jiazheng Hao(郝嘉政)1,2, Xiaojuan Zhou(周晓娟)1,2, Jianrong Zhou(周健荣)1,2, Zhijia Sun(孙志嘉)1,2, Lunhua He(何伦华)2,3,‡, and Tianjiao Liang(梁天骄)1,2   

  1. 1 Institute of High Energy Physics, Chinese Academy of Sciences(CAS), Beijing 100049, China;
    2 Spallation Neutron Source Science Center(SNSSC), Dongguan 523803, China;
    3 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    4 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2021-04-23 Revised:2021-06-13 Accepted:2021-06-23 Online:2021-08-19 Published:2021-08-30
  • Contact: Jie Chen, Lunhua He E-mail:chenjie@ihep.ac.cn;lhhe@iphy.ac.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant Nos. 2017YFB0701903 and 2016YFA0401502), the National Natural Science Foundation of China (Grant No. 12041202), the Youth Innovation Promotion Association of Chinese Academy of Sciences (Grant No. 2017023), the Guangdong Natural Science Foundation, China (Grant No. 2016A030313129), and the Department of Science and Technology of Guangdong Province under grant project of energy-resolved neutron imaging instrument.

摘要: 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.

关键词: neutron Bragg-edge imaging, China Spallation Neutron Source

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.

Key words: neutron Bragg-edge imaging, China Spallation Neutron Source

中图分类号:  (Neutron imaging; neutron tomography)

  • 61.05.Tv
61.05.F- (Neutron diffraction and scattering)