Analysis distribution of galactic cosmic rays particle energy with polar orbit satellite for Geant4 application
Analysis distribution of galactic cosmic rays particle energy with polar orbit satellite for Geant4 application
复制标题
Geant4应用极轨道卫星分析银河宇宙线粒子能量分布
DOI：
10.1088/1742-6596/495/1/012038
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
W. S. Putro
中科院分区：
文献类型：
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作者：
W. Suparta;W. S. Putro
银河宇宙射线（GCR）是源自天体物理源的光子波，它穿过星际/行星际介质到达地球大气层。银河宇宙射线粒子的能量高达并超过1012 eV，该光谱的峰值约为1 GeV。美国国家航空航天局（NASA）提供了监测极轨道上能量GCR粒子的卫星任务，即ACE和OMNI。本文对GCR传感器的测量误差结果进行了分析。通过将GCR传感器的测量结果与巴托尔大学地基中子监测仪的测量结果进行比较，得出了误差结果。在2000年7月14日和2003年10月28日的太阳粒子事件（SPE）高峰期间进行了两个周期的测量。本研究中GCR传感器测量误差值最大的是OMNI卫星。得到误差结果后，将其应用到Geant4仿真中。仿真结果显示了GCR传感器的粒子能量分布形状。仿真结果表明，该系统在Linux平台下运行良好。
Galactic Cosmic Rays (GCR) are photon waves originating from astrophysical sources which traverse through the interstellar/interplanetary medium and reaching the terrestrial atmosphere. The energies of Galactic Cosmic Ray particles up to and exceeding 1012 eV, and this spectrum are peaked around 1 GeV. The National Aeronautics and Space Administration (NASA) provide satellite mission for monitoring the energy GCR particles in polar orbit, so-called the ACE and OMNI. In this paper, we analyze results from measurement error of GCR sensor. The error result is obtained by comparing the measurements from GCR sensor with ground-based neutron monitors at Bartol University. The measurements were taken for two periods during a Solar Particle Event (SPE) maximum on 14 July 2000 and 28 October 2003. The largest value of measurement error from GCR sensor in this study is OMNI satellites. After the error results were obtained, they were applied into Geant4 simulation. This simulation shows the shape of particle energy distribution of GCR sensors. The simulation has been tested and can be operated very well under Linux based platform.