Miniaturized time-of-flight neutron spin flipper using a high-T<sub>C</sub> superconductor

Yu-Chen Dong; Tian-Hao Wang; Wolfgang Kreuzpaintner; Xiao-Tao Liu; Ze-Hui Li; Yu-Dong Kang; Jun-Pei Zhang; Long Tian; Chu-Yi Huang; Bo Bai; Xin Tong

doi:10.1007/s41365-022-01134-7

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Miniaturized time-of-flight neutron spin flipper using a high-T_C superconductor

ACCELERATOR, RAY TECHNOLOGY AND APPLICATIONS | Updated：2022-12-16

- Miniaturized time-of-flight neutron spin flipper using a high-T_C superconductor
- Nuclear Science and Techniques Vol. 33, Issue 11, Article number: 145(2022)
- Affiliations：
  
  1.Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China
  2.Spallation Neutron Source Science Center, Dongguan 523803, China
  3.School of Nuclear Science and Technology, University of the Chinese Academy of Sciences, Beijing 100049, China
  4.Guangzhou Institute of Technology, Xidian University, Guangzhou 510555, China
  5.School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Author bio：
  
  † baibo@ihep.ac.cn
  ‡ tongxin@ihep.ac.cn
- Funds：
- DOI：10.1007/s41365-022-01134-7
  CLC：
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Yu-Chen Dong, Tian-Hao Wang, Wolfgang Kreuzpaintner, et al. Miniaturized time-of-flight neutron spin flipper using a high-T_C superconductor. [J]. Nuclear Science and Techniques 33(11):145(2022)
DOI：

Yu-Chen Dong, Tian-Hao Wang, Wolfgang Kreuzpaintner, et al. Miniaturized time-of-flight neutron spin flipper using a high-T_C superconductor. [J]. Nuclear Science and Techniques 33(11):145(2022) DOI： 10.1007/s41365-022-01134-7.

摘要

Abstract

A miniaturized neutron spin flipper based on a high-T,C, superconductor film, developed at the China Spallation Neutron Source (CSNS), is presented. A neutron spin flipper is an essential component for performing polarized neutron experiments and, as such, constitutes a high priority for developing CSNS’s polarized neutron capability. To provide the beamlines with a universal neutron spin flipper operating over a wide wavelength band, the neutron spin flipper utilizes non-adiabatic spin flipping during transit through opposite magnetic fields that are mutually shielded by the superconductor Meissner effect. A compact vacuum heat shield and a low-power consumption sterling refrigerator maintained the superconducting condition while reducing the size and power input of the flipper. The prototype device was tested at the CSNS BL-20, which demonstrated a flipping efficiency of 99 % at 4 Å.

关键词

Keywords

NeutronSuperconductorScatteringSpin-flipper

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Miniaturized time-of-flight neutron spin flipper using a high-TC superconductor

DOI：10.1007/s41365-022-01134-7

摘要

Abstract

关键词

Keywords

references

Miniaturized time-of-flight neutron spin flipper using a high-T_C superconductor