Nuclear Techniques ›› 2016, Vol. 39 ›› Issue (6): 60201-060201.doi: 10.11889/j.0253-3219.2016.hjs.39.060201

• LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS • Previous Articles     Next Articles

Secondary particle simulation analysis of high-energy 56Fe ion inject various shielding material

XUN Mingzhu1,2,3, HE Chengfa2,3, LU Wu2,3, GUO Qi2,3, SUN Jing2,3, LIU Mohan2,3, ZENG Junzhe2,3, WANG Xin2,3   

  1. 1 School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China;
    2 Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China;
    3 Xinjiang Key Laboratory of Electronic Information Materials and Devices, Urumqi 830011, China
  • Received:2016-02-20 Revised:2016-04-05 Online:2016-06-10 Published:2016-06-12
  • Supported by:

    Supported by National Natural Science Foundation of China (No.U1532261)

Abstract:

Background: The heavy ion in the galaxy cosmos rays with extremely high energy can be fatal to the astronaut and electronic device in the spacecraft. Purpose: This study aims to analyze the secondary particles produced by high energy heavy ion inject shielding materials of spacecraft. Methods: Based on the Monte-Carlo method simulation software Geant4, 1-V·u-156Fe ion incident four kinds of shielding material aluminum, aluminum carbon, polyethylene and water with 1.35-g·cm-2 mass thickness have been studied. The energy deposition in the absorber and deep-dose distribution produced by the transmitted primary particles and secondary electrons, secondary neutrons, secondary protons and secondary gamma have been analyzed. All produced secondary heavy particles and energies from four kinds of shielding materials after injected high-energy 1-V·u-156Fe ion have been investigated, and the shielding performance was analyzed and compared.Results: Polyethylene material absorbs the most energy, thus preservebest shielding performance whilst majority of secondary particlesand energies are produced. The energy of secondary heavy ion is quadruple of that producedby aluminum material.Conclusion: Amongall the secondary particles, secondary protons and secondary heavy ionswithatom number between 22 and 26 make the maximal contributions.

Key words: Geant4, Secondary particle, Shield material, Heavy ion

CLC Number: 

  • TL99