Open AccessA simulation study of the atmospheric neutron environment in near space
Author(s) -
Cai Minghui,
Jizhong Han,
Xiaoyin Li,
Hongwei Li,
Zhang Zhen-Li
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.6659
Subject(s) - cosmic ray , physics , neutron , neutron monitor , computational physics , neutron flux , monte carlo method , earth's magnetic field , atmosphere (unit) , nuclear physics , magnetic field , meteorology , statistics , mathematics , quantum mechanics
In this paper, a Monte Carlo simulation model based on atmosphere model, cosmic ray model and geomagnetic field model has been developed for the near space atmospheric neutron environment. The neutron distributions induced by cosmic rays and solar particles have been calculated separately. What is more, the influence of cutoff rigidity to neutron flux has been analyzed. By comparing with ARM model, we can draw the conclusion that our model is credible and excellence in calculating neutron flux induced by solar particles. The model could be applied in many fields, such as evaluating single event effects of microelectronics and analyzing radiation dose received by the air crew.