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Chinese Physics C> 2005, Vol. 29> Issue(2) : 197-200 

Identification Model of Space Heavy Ions by CR-39

  •  Institutte of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 South China University of Agriculture,Guangzhou 510642,China

  • A mathematical model LET = cZdRb for identifying space heavy ions is established based on energy loss rate of the heavy ions in CR-39. Coefficients of the model are acquired through correlative curves between linear energy transfer and residual range. Another relation VT = A&#8729;(REL) E<350B between etched rate of CR-39 and restricted linear energy transfer of the ions, which is experimentally found, is used to connect the mathematical model for getting an equation R = A0.0455 Z3.18VT-1. Finally, an identification formula Z3.18=64541.08+2.53 (dR/dVT-1) is obtained by means of calibration experiments.
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    [1] . ZHU Run-Sheng. Principle and Application of Solid-State Nuclear Track Detector. Beijing : Science Press , 1987. (in Chinese)(朱润生. 固体核径迹探测器的原理和应用. 北京:科学出版社,1987)2. Benton E V , Henke R P. High Z Particle Cosmic-Ray Exposure of Apollo 8 —14 Astronauts : AFWL-TR-7225 , 1971

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WEI Zeng-Quan, XIE Hong-Mei, MEI Man-Tong and ZHUANG Chu-Xiong. Identification Model of Space Heavy Ions by CR-39[J]. Chinese Physics C, 2005, 29(2): 197-200.
WEI Zeng-Quan, XIE Hong-Mei, MEI Man-Tong and ZHUANG Chu-Xiong. Identification Model of Space Heavy Ions by CR-39[J]. Chinese Physics C, 2005, 29(2): 197-200. shu
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Received: 2004-06-24
Revised: 1900-01-01
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Identification Model of Space Heavy Ions by CR-39

    Corresponding author: WEI Zeng-Quan,
  • Institutte of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 South China University of Agriculture,Guangzhou 510642,China
  • Received Date: 2004-06-24
  • Accepted Date: 1900-01-01
  • Available Online: 2005-02-05

Abstract: A mathematical model LET = cZdRb for identifying space heavy ions is established based on energy loss rate of the heavy ions in CR-39. Coefficients of the model are acquired through correlative curves between linear energy transfer and residual range. Another relation VT = A&#8729;(REL) E<350B between etched rate of CR-39 and restricted linear energy transfer of the ions, which is experimentally found, is used to connect the mathematical model for getting an equation R = A0.0455 Z3.18VT-1. Finally, an identification formula Z3.18=64541.08+2.53 (dR/dVT-1) is obtained by means of calibration experiments.

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