宇航计测技术

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强γ射线参考辐射场散射影响研究

苗亮亮1;余小任1;宋晓靓1;马燕1   

  1. 1、西北核技术研究所,西安 710024
  • 出版日期:2014-06-15 发布日期:2014-06-15

Research on Scattering Effects of High γ-ray Reference Radiation Field

MIAO Liang-liang1;YU Xiao-ren1;SONG Xiao-jing1;MA Yan1   

  1. 1、Northwest Institute of Nuclear Technology, Xi’an 710024
  • Online:2014-06-15 Published:2014-06-15

摘要: 采用蒙特卡罗程序MCNP对强γ射线参考辐射场的散射特性进行了模拟,确立了辐射场实验空间内的剂量率和能谱分布。通过多种角度对屏蔽墙散射和在束散射体散射进行了细致的分析,为校准实验室钴源辐射场的实验应用和屏蔽设计提供参考。

关键词: 屏蔽, 散射, 参考辐射场, 剂量率

Abstract: The scattering characteristics of high γ-ray reference radiation field is stimulated by the Monte Carlo code MCNP to confirm the dose rate and the energy spectrum distribution of the experimental space. Careful analysis of the scattering of shielding wall and in-beam scatterer from multiple perspectives provides reference for the experimental application and shield design of Co-60 radiation field of  Calibration laboratory.

Key words: Shielding, Scattering, Reference radiation field, Dose rate