Projectile charge state dependence of M-shell ionization of Au, Pb, Bi, and U by 1. 42-MeV/amu fluorine ions
Description: The present study was undertaken to determine the direct ionization and electron capture contributions to vacancy production in the M-shells of /sub 79/Au, /sub 82/Pb, /sub 83/Bi and /sub 92/U for incident /sup 19//sub 9/F ions. M-shell x-ray production cross sections have been measured for 1.42-MeV/amu /sup 19//sub 9/Fq/sup +/ ions for q = 4,5,6,8,9. Enhancements in the target x-ray production cross sections were observed for projectiles with one and two K-shell vacancies over those without K-shell vacancies. Direct ionization and electron capture contributions to the vacancy production were extracted from the data and compared to the plane wave Born approximation and to the Oppenheimer-Brinkman-Kramers calculations of Nikolaev, respectively.
Date: January 1, 1980
Creator: Mehta, R.; Duggan, J.L.; McDaniel, F.D.; Andrews, M.C.; Wheeler, R.M.; Chaturvedi, R.P. et al.
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