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Ar K-SHELL IONIZATION CROSS SECTIONS FOR PROTONS FROM 100 keV DOWN TO 40 keV

C.C. HSU

Department of Physics Institute of Nuclear Science Nátional Tsing Hua University, Hsinchu, Taiwan, ROC

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T.C. CHU

Department of Physics Institute of Nuclear Science Nátional Tsing Hua University, Hsinchu, Taiwan, ROC

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Y.C. CHANG

Department of Physics Institute of Nuclear Science Nátional Tsing Hua University, Hsinchu, Taiwan, ROC

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https://doi.org/10.1142/S0129083592000075Cited by:2 (Source: Crossref)

Abstract

The K-shell ionization cross sections for Ar gas were measured from 100 keV down to 40 keV of H ions. The results are compared with theoretical calculations of PWBABC, CPSSR, and ECPSSR. They indicate that the discrepancy between experimental results and theoretical calculation increases as the H⁺ energy decreases in the range below ~50 keV. This is consistent with previous results on K-shell X-rays for Si.