K-shell ionization of Al and Cu for 0.5-40-MeV-proton bombardment

K. Sera, K. Ishii, M. Kamiya, A. Kuwako, S. Morita

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1412-1418
Number of pages7
JournalPhysical Review A
Issue number5
Publication statusPublished - 1980

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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