宇航计测技术

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(70~100)MeV准单能中子参考辐射场设计

李玮1;李立华1;焦听雨1;夏莉1;李春娟1;石斌1;李晓博1;刘毅娜1;刘蕴韬1   

  1. 1、中国原子能科学研究院,计量与校准技术重点实验室,北京 102413
  • 出版日期:2019-06-25 发布日期:2019-06-25
  • 作者简介:李玮(1982.07-),男,副研究员,博士,主要研究方向:粒子物理与原子核物理技术。

Designing of (70~100)MeV Quasi Mono-energetic Neutron Reference Fields

LI Wei1;LI Li-hua1;JIAO Ting-yu1;XIA Li1;LI Chun-juan1;SHI Bin1;LI Xiao-bo1;LIU Yi-na1;LIU Yun-tao1   

  1. 1、National Key Laboratory for Metrology and Calibration Techniques,China Institute of Atomic Energy,Beijing 102413,China
  • Online:2019-06-25 Published:2019-06-25

摘要: 国内基于串列加速器建立了144keV~15MeV的单能中子参考辐射场,解决了20MeV以下能区中子探测器注量、剂量等参数的量值溯源,但尚未建立20MeV以上能区准单能中子参考辐射场。随着航天空间中子探测任务的需要以及地面高能质子加速器的发展,20MeV以上能区准单能中子参考辐射场需求越来越突出。发展20MeV以上能区高能中子参考辐射场对于满足国防需求、推动中子计量学科发展具有重要意义。

关键词: 高能中子, 参考辐射, 响应校准

Abstract: 144keV~15MeV mono-energetic reference fields based on tandem accelerator have been established in China.The calibration of neutron detector and traceability of neutron fluence and dosimetry have been realized below 20MeV.But there are no quasi mono-energetic reference fields above 20MeV in China.With the developments of neutron detector for space radiation and the developments of high energy proton accelerators,the needs for neutron reference fields above 20MeV are more and more intense.Being established of quasi mono-energetic neutron reference fields above 20MeV is very important for resolving defense industry needs and pushing development of neutron metrology.

Key words: High energy neutron, Reference fields, Response calibration