Chinese Physics C > 1993, Vol. 17 > Issue(7): 589-594

Monte Carlo Simulation for the Propagation of Galactic Cosmic Ray Nuclei

Department of Physics,Yunnan University,Kunming 650091

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Abstract：
Based on the assumption that galactic cosmic ray(GCR) is produced by the diffusive shock wave acceleration of supernova explosion in the Galaxy,we simulate the propagation of GCR nuclei in the interstellar medium by using the Monte Carlo method.In our simulating calculation,we use the nuclear interaction cross sections and the probabilities of nuclear fragmentation measured in the accelerator experiments;we consider the ionization energy loss of GCR nuclei in the standard leaky box model and the effect of solar modulation on the GCR nuclei by using force-field approximation.Our calculating B/C,V/Fe and the spectra of O and Fe can be compared with experimental data.Finally,we discuss the effects of different compress ratios of shock wave on the calculation results.

References

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ZHANG Li, ZHANG Ming, MU Jun and YU Chuan-Zan. Monte Carlo Simulation for the Propagation of Galactic Cosmic Ray Nuclei[J]. Chinese Physics C, 1993, 17(7): 589-594.

ZHANG Li, ZHANG Ming, MU Jun and YU Chuan-Zan. Monte Carlo Simulation for the Propagation of Galactic Cosmic Ray Nuclei[J]. Chinese Physics C, 1993, 17(7): 589-594. shu

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Received: 1900-01-01
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Monte Carlo Simulation for the Propagation of Galactic Cosmic Ray Nuclei

Corresponding author:ZHANG Li,

Department of Physics,Yunnan University,Kunming 650091

Received Date:1900-01-01

Accepted Date:1900-01-01

Available Online:1993-07-05

Abstract:Based on the assumption that galactic cosmic ray(GCR) is produced by the diffusive shock wave acceleration of supernova explosion in the Galaxy,we simulate the propagation of GCR nuclei in the interstellar medium by using the Monte Carlo method.In our simulating calculation,we use the nuclear interaction cross sections and the probabilities of nuclear fragmentation measured in the accelerator experiments;we consider the ionization energy loss of GCR nuclei in the standard leaky box model and the effect of solar modulation on the GCR nuclei by using force-field approximation.Our calculating B/C,V/Fe and the spectra of O and Fe can be compared with experimental data.Finally,we discuss the effects of different compress ratios of shock wave on the calculation results.

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Monte Carlo Simulation for the Propagation of Galactic Cosmic Ray Nuclei

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