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Study of neutron energy and directional distribution at the Beloyarsk NPP selected workplaces
Nuclear Engineering and Technology ( IF 2.6 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.net.2020.10.015
Mariia Pyshkina , Aleksey Vasilyev , Aleksey Ekidin , Evgeniy Nazarov , Vitaly Nikitenko , Anton Pudovkin

Energy and directional distribution of neutrons at the Beloyarsk NPP workplaces is a subject of this study. Measurements of H*(10) rate and neutron energy distribution were taken at 8 workplaces, which can be divided into three categories: work with spent or fresh nuclear fuel, work with radionuclide neutron sources, work at the rooms adjusted to reactors. The Hp(10) measurements were performed only at 6 out of 8 locations, due to the fact that long term placing of an effective neutron moderator in fresh nuclear fuel storage facility is forbidden. As a result of the research energy and direction distribution of the neutron fields at 8 locations of the Beloyarsk NPP workplaces was obtained. To estimate the accuracy of the H*(10) rate and Hp (10) measurements the reference values of dose equivalents were calculated using energy and directional distribution. To take into account the difference between the reference values and the measured results site-specific correction factors were calculated.

中文翻译:

Beloyarsk NPP 选定工作场所的中子能量和定向分布研究

Beloyarsk NPP 工作场所中子的能量和定向分布是本研究的一个主题。在 8 个工作场所进行 H*(10) 速率和中子能量分布的测量,可分为三类:使用乏燃料或新鲜核燃料工作、使用放射性核素中子源工作、在适应反应堆的房间工作。Hp(10) 测量仅在 8 个地点中的 6 个进行,因为禁止在新核燃料储存设施中长期放置有效的中子慢化剂。作为研究的结果,获得了别洛亚尔斯克核电厂工作场所 8 个位置的中子场的能量和方向分布。为了估计 H*(10) 率和 Hp (10) 测量的准确性,使用能量和方向分布计算了剂量当量的参考值。考虑到参考值和测量结果之间的差异,计算了特定地点的校正因子。
更新日期:2020-10-01
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