1 Clapier L et al . Nucl Instr Meth, 1983, 217: 489~494
2 Guo Z Y et al . Nucl Instr Meth, 1987, B29: 500~507
3 Ohnesorge W F et al . Health Phys, 1980, 39: 633~636
4 Festag J G . In: 5th International Congress of IRPA , Jerusalem , 1980, 743~746
5 Li G S, Zhang T M, Li Z W et al . Nucl Instr Meth, 1998, A404: 349~354
6 Li G S, Wang J, Zhao Y S et al . Health Phys, 1998, 75(4): 405~409
7 Li G S, Zhang T M, Li Z W et al . Nucl Sci Techn, 1998, 9(3): 145~147
8 Li G S, Zhang T M, Li Z W et al .
Neutrons around thick target bombarded by 50 MeV/u 18O-ion beam
, Nucl Instr Meth (to be Published)9 Li G S, Zhang T M, Li Z W et al .
Neutron dose equivalent rate in intermediate energy heavy ion target area
, Radiat Prot Dosim (to be published)10 Bertini H W et al . Phys Rev, 1976, C14: 590~595
11 Gabriel T A et al . ORNL-TM-4334, 1957
12 NBS of China, The rule for radiation protection of particle accelerators. Beijing : National Standard Press , 1985