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K-shell ionization of Al and Cu for 0. 5-- 40-MeV-proton bombardment

Journal Article · · Phys. Rev., A; (United States)
K-shell ionization cross sections of Al and Cu for proton impact have been measured over the projectile-energy range 0.5-- 40 MeV, and the results are compared with calculations of plane-wave Born approximation (PWBA) and binary-encounter approximation (BEA). In the PWBA calculation, contributions from close and distant collisions are separately estimated by an approximate calculation. It is found that the distant collisions make a predominant contribution in the high-projectile-energy region and the experimental results are in better agreement with the PWBA than the BEA, which takes into account only the close collision.
Research Organization:
Cyclotron and Radioisotope Center, Tohoku University, Sendai, 980 Japan
OSTI ID:
5448994
Journal Information:
Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 21:5; ISSN PLRAA
Country of Publication:
United States
Language:
English