论文标题
低能加速器设施中γ射线背景的测量和模拟
Measurement and simulation of gamma-ray background in a low energy accelerator facility
论文作者
论文摘要
室内环境中的伽马射线背景已被测量高达3 MeV，以评估研究在实验性核天体物理学（FRENA）研究的设施中研究低横截面（纳米骨至Picobarn范围）的天体物理反应的可行性，Kolkata，Kolkata。具有20％相对效率的N型同轴HPGE检测器已放置在加速器和梁厅的不同位置进行测量。测得的活性已与具有和不被动和主动辐射屏蔽的两个实验室（带有标准砖墙）的活性进行了比较。由于弗雷纳（Frena）的大厅被混凝土屏蔽了很好，因此使用4P几何模型模拟了室内伽马射线背景中屏蔽的贡献。
The gamma-ray background in the indoor environment has been measured up to 3 MeV to evaluate the feasibility of studying low cross-section (nanobarn to picobarn range) astrophysical reactions at the Facility for Research in Experimental Nuclear Astrophysics (FRENA), Saha Institute of Nuclear Physics, Kolkata. An n-type coaxial HPGe detector with 20% relative efficiency has been placed at different locations in the accelerator and beam halls for the measurement. The measured activity has been compared with that at two laboratories (with standard brick walls) with and without passive and active radiation shielding. As the halls at FRENA are well shielded by concrete, the contribution of the shielding in indoor gamma-ray background has been delineated by simulation using a 4p-geometry model.
