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Neutron flux and energy characterization of a plutonium-beryllium isotopic neutron source by monte carlo simulation with verification by neutron activation analysis.

机译:mon-铍同位素中子源的中子通量和能量表征,通过蒙特卡罗模拟并通过中子活化分析进行验证。

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摘要

The purpose of this research was to characterize the neutron energy distribution and flux emitted from the UNLV plutonium-beryllium source, serial number MRC-N-W PuBe 453. This was accomplished through the use of the MCNPX/5 Monte-Carlo particle transport code to simulate radiation interactions within the physical environment of the source and its surroundings. The moderating drum currently containing the source as well as all of the sampling ports were accurately modeled in MCNPX/5. This geometry was then used to simulate the neutron interactions taking place in these geometries. The results of the simulations were then verified by the use of specifically chosen activation detectors and threshold foils designed to accurately convey information on the energy distribution and flux of the neutrons present at multiple sampling locations.
机译:这项研究的目的是表征从序列号MRC-NW PuBe 453的UNLV ber-铍源发出的中子能量分布和通量。这是通过使用MCNPX / 5蒙特卡洛粒子传输代码进行模拟来完成的源及其周围环境的辐射相互作用。当前包含源以及所有采样端口的调节鼓已在MCNPX / 5中精确建模。然后将这种几何形状用于模拟在这些几何形状中发生的中子相互作用。然后,通过使用专门选择的激活检测器和阈值箔片来验证仿真结果,这些激活检测器和阈值箔片旨在准确传达有关在多个采样位置处存在的中子的能量分布和通量的信息。

著录项

  • 作者

    Harvey, Zachary R.;

  • 作者单位

    University of Nevada, Las Vegas.;

  • 授予单位 University of Nevada, Las Vegas.;
  • 学科 Physics Nuclear.;Physics Radiation.
  • 学位 M.S.
  • 年度 2010
  • 页码 85 p.
  • 总页数 85
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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