Monte Carlo Evaluation for SSRF Beam Holes Shielding neutrons of Front End Ratchet Walls
This study investigated the characteristics of bremsstrahlung and induced neutrons from the electron storage ring in Shanghai Synchrotron Radiation Facility (SSRF). The EGSnrc and MCNP Monte Carlo code has been used to perform to assess neutron and photon dose profiles for a variety of shield materials ranging from 5 to 115 cm thick. The Monte Carlo simulations show that single materials such as lead, iron and polyethylene have been found to be ineffective biological shield materials, while mixed materials serve as effective shields for shielding high energy neutron. Mixed materials such as lead or iron combined with polyethylene or combined with concrete are good materials combination for high energy neutron radiation shield. And high-Z materials such as lead or iron combine with low-Z material containing some hydrogen such polyethylene are effective for shielding high energy neutrons as well as bremsstrahlung.
MCNP EGSnrc neutron radiation shielding synchrotron radiation SSRF
WANG Jian-Hua XU Jia-Qiang XU Xun-Jiang CAI Jian-Hua Cai-Jun HUA Zheng-Dong, Fang Ke-Ming LIU Xin
Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800
国内会议
杭州
英文
1-4
2007-09-15（万方平台首次上网日期，不代表论文的发表时间）