Radiation Protection of CSR

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SU You-Wu, LI Wu-Yuan, LI Zong-Qiang, ZHENG Hua-Zhi and ZHU Xiao-Long. Radiation Protection of CSR[J]. Chinese Physics C, 2005, 29(11): 1100-1103.
SU You-Wu, LI Wu-Yuan, LI Zong-Qiang, ZHENG Hua-Zhi and ZHU Xiao-Long. Radiation Protection of CSR[J]. Chinese Physics C, 2005, 29(11): 1100-1103. shu
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Received: 2005-03-15
Revised: 1900-01-01
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Radiation Protection of CSR

    Corresponding author: SU You-Wu,
  • Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China

Abstract: The construction of CSR (cooling storage ring) which includes a main ring (CSRm) and an experimental ring (CSRe) will be finished at the end of 2005. Heavy ions of carbon to uranium will be accelerated up to 900MeV/u and 400MeV/u at intensity of 108 pps. The HIRFL (heavy ion research facility in Lanzhou) will be used as the injector. For the shielding design of CSR, the secondary neutrons due to the ion beam loss, their spectra and angular distributions were estimated based on the experimental results. The dose equivalent outside the shielding surface and in the surrounding environment and the neutron skyshine dose equivalent were also estimated in this study. The experimental result, neutron yield, spectrum and angular distribution for 400MeV/u 12C+Cu reaction were used for estimating the source term of shielding design. It is found that the most important environmental radiation impact component of CSR is the skyshine neutrons.

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