AN APPLICATION OF IPM POTENTIAL IN CALCULATING THE ENERGY STRAGGLING FOR FAST PROTON BEAMS

AN APPLICATION OF IPM POTENTIAL IN CALCULATING THE ENERGY STRAGGLING FOR FAST PROTON BEAMS 1 first-author Xinjiang Institute of Physics, Academia Sinica, Urumqi 830011, China Xinjiang Institute of Physics, Academia Sinica, Urumqi 830011, China Energy straggling for fast proton beams in Ni, Al, Ti, Cu, In and Sb solids and N, O, F, B, S, Cl and air gases were calculated using an effective IPM potential which contains an adjustable parameter. The energy and Z 2 (target atomic number) dependence of the energy straggling for proton in materials are obtained when Bonderup and Hvelplund's formulation is used. The results are compared with some experiments in detail, and show in good agreement with them. IPM potential Energy straggling Light ions REFERENCES J. Lindhard and M. Scharff , K. Dan. Vid. Selsk. Mat. Fys. Medd. , 27 ( 1953 ), 15 . K. Dan. Vid. Selsk. Mat. Fys. Medd. E. Bonderup and P. Hvelplund , Phys. Rev. , A4 ( 1971 ), 562 . Phys. Rev. W.K. Chu , Phys. Rev. , A13 ( 1976 ), 2057 . Phys. Rev. F. Besenbacher et al . Nucl. Instr. Meth. , 168 ( 1980 ), 1 . Nucl. Instr. Meth. Ma Zhonquan , Natural J. (in Chinese) , 11 ( 1988 ), 952 . Natural J. (in Chinese) A. Dygo et al ., Nucl. Instr. Meth. , B18 ( 1987 ), 115 . Nucl. Instr. Meth. Y. Kido , Phys. Rev. , B34 ( 1986 ), 73 . Phys. Rev. Y. Kido and T. Hioki , Phys. Rev. , B27 ( 1983 ), 2667 . Phys. Rev. Project was supported by Foundation of Analysis and Testing, Beijing 89K25E-123. 1991-11-01 2021-02-05 1991 Nuclear Science and Techniques 4 2