首页 正文

PloS one. 2015 Dec 16;10(12):e0144679. doi: 10.1371/journal.pone.0144679 Q22.92024

Analytical Model for Estimating Terrestrial Cosmic Ray Fluxes Nearly Anytime and Anywhere in the World: Extension of PARMA/EXPACS

全球任何时间任何地点估算宇宙射线强度的解析模型:PARMA/EXPACS方法的扩展 翻译改进

Tatsuhiko Sato  1

作者单位 +展开

作者单位

  • 1 Research Group for Radiation Transport Analysis, Japan Atomic Energy Agency (JAEA), Shirakata 2-4, Tokai, Ibaraki 319-1195, Japan.
  • DOI: 10.1371/journal.pone.0144679 PMID: 26674183

    摘要 Ai翻译

    By extending our previously established model, here we present a new model called "PHITS-based Analytical Radiation Model in the Atmosphere (PARMA) version 3.0," which can instantaneously estimate terrestrial cosmic ray fluxes of neutrons, protons, ions with charge up to 28 (Ni), muons, electrons, positrons, and photons nearly anytime and anywhere in the Earth's atmosphere. The model comprises numerous analytical functions with parameters whose numerical values were fitted to reproduce the results of the extensive air shower (EAS) simulation performed by Particle and Heavy Ion Transport code System (PHITS). The accuracy of the EAS simulation was well verified using various experimental data, while that of PARMA3.0 was confirmed by the high R2 values of the fit. The models to be used for estimating radiation doses due to cosmic ray exposure, cosmic ray induced ionization rates, and count rates of neutron monitors were validated by investigating their capability to reproduce those quantities measured under various conditions. PARMA3.0 is available freely and is easy to use, as implemented in an open-access software program EXcel-based Program for Calculating Atmospheric Cosmic ray Spectrum (EXPACS). Because of these features, the new version of PARMA/EXPACS can be an important tool in various research fields such as geosciences, cosmic ray physics, and radiation research.

    Keywords:cosmic ray fluxes; analytical model; terrestrial cosmic rays

    Copyright © PloS one. 中文内容为AI机器翻译,仅供参考!

    相关内容

    期刊名:Plos one

    缩写:PLOS ONE

    ISSN:1932-6203

    e-ISSN:

    IF/分区:2.9/Q2

    文章目录 更多期刊信息

    全文链接
    引文链接
    复制
    已复制!
    推荐内容
    Analytical Model for Estimating Terrestrial Cosmic Ray Fluxes Nearly Anytime and Anywhere in the World: Extension of PARMA/EXPACS