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基于冷中子谱的紧凑型中子自旋倒相器设计

李新喜 王燕 王云 黄朝强 张莹

李新喜, 王燕, 王云, 黄朝强, 张莹. 基于冷中子谱的紧凑型中子自旋倒相器设计[J]. 中国光学, 2014, 7(4): 600-607. doi: 10.3788/CO.20140704.0600
引用本文: 李新喜, 王燕, 王云, 黄朝强, 张莹. 基于冷中子谱的紧凑型中子自旋倒相器设计[J]. 中国光学, 2014, 7(4): 600-607. doi: 10.3788/CO.20140704.0600
LI Xin-xi, WANG Yan, WANG Yun, HUANG Chao-qiang, ZHANG Ying. Design of compact neutron spin flipper based on cold neutron spectrum[J]. Chinese Optics, 2014, 7(4): 600-607. doi: 10.3788/CO.20140704.0600
Citation: LI Xin-xi, WANG Yan, WANG Yun, HUANG Chao-qiang, ZHANG Ying. Design of compact neutron spin flipper based on cold neutron spectrum[J]. Chinese Optics, 2014, 7(4): 600-607. doi: 10.3788/CO.20140704.0600

基于冷中子谱的紧凑型中子自旋倒相器设计

doi: 10.3788/CO.20140704.0600
基金项目: 

国家自然科学基金资助项目(No.61175005);中国工程物理研究院重点实验室基金资助项目(No.2013BB04)

详细信息
    作者简介:

    黄朝强(1981-),男,贵州德江人,助理研究员,2003年于四川大学获学士学位,2006年于中国工程物理研究院获硕士学位,主要从事中子散射技术及应用方面的研究。E-mail:C.Q.Huang@163.com

    通讯作者:

    李新喜

  • 中图分类号: TL817.9

Design of compact neutron spin flipper based on cold neutron spectrum

  • 摘要: 为节省极化中子散射谱仪传输光路的空间,实现特定冷中子谱的极化中子高效率自旋翻转,使用在空间上自然衰减的前端多层膜极化器静磁场作为中子自旋倒相器的导向磁场,在空间上形成了紧凑型冷中子自旋倒相器设计模型。介绍了实际模型物理参数的计算方法。对前端极化器静磁场在空间上的自然衰减进行了实验测试,根据测试结果及拟使用冷中子波段,针对设计的紧凑型中子自旋倒相器的相关参数进行了优化计算。模拟了极化中子在实际复合磁场中的自旋翻转图像,计算了自旋倒相器的翻转效率。对设计的紧凑型中子自旋倒相器进行了翻转效率物理实验测试,测试结果表明:设计的中子自旋倒相器翻转效率可在99.2%以上,达到了预期设计指标,可用于极化冷中子散射谱仪。
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出版历程
  • 收稿日期:  2014-03-19
  • 修回日期:  2014-05-08
  • 刊出日期:  2014-07-25

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