ABSOLUTE DOUBLY DIFFERENTIAL CROSS-SECTIONS FOR ELECTRON-EMISSION IN COLLISIONS OF 3.5-MEV/U FE(17+) AND FE(22+) IONS WITH HE AND AR GAS TARGETS

D.H. Schneider, D.R. Dewitt, R.W. Bauer, J.R. Mowat, Bill Graham, A.S. Schlachter, B. Skogvall, P. Fainstein, R.D. Rivarola

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12 Citations (Scopus)

Abstract

Absolute doubly differential cross sections have been measured as a function of electron energy and angle of observation for electron emission in collisions of 3.5-MeV/u Fe17+ and Fe22+ ions with He and Ar gas targets under single-collision conditions. The measured electron emission cross sections are compared to theoretical and scaled cross sections based on the Born approximation. The results using intermediate-mass ions are discussed with reference to previously reported cross sections from collisions with highly charged lighter- and heavier-ion species at MeV/u projectile energies. The continuum-distorted-wave-eikonal-initial-state approximation shows good agreement with experiments except in the
Original languageEnglish
Pages (from-to)1296-1302
Number of pages7
JournalPhysical Review A
Volume46
Publication statusPublished - 1992

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