K-shell ionization cross sections of Cl and L α, L β X-ray production cross sections of Ba by 6–30 keV electron impact

Abstract

The absolute K-shell ionization cross sections of Cl and L α, L β X-ray production cross sections of Ba by 6–30 keV electron impact have been measured. The target was prepared by evaporating the thin film of compound BaCl 2 to the thick pure carbon substrate. The effects of multiple scattering of electrons penetrating the target films, electrons reflected from the thick pure carbon substrates and Bremsstrahlung photons produced when incident electrons impacted on the targets are corrected by using Monte Carlo method. For Ba L-shell X-ray characteristic peaks, the spectra were fitted by using spectrum-fitting program ALLFIT to extract more accurately the L α and L β peak counts. The experimental results, reported here for the first time in the energy region of 6–30 keV, were compared with some theoretical results developed recently.