Proton Induced X-Ray Analysis

Abstract

Proton induced thick target X-ray yields have been measured from the elements Ti, V, Fe, Ni, Cu, Zn, Mo, Ag, Cd, In and Sn forthe K shell, and from In, Sn, Nd, Dy, Pt and Au for the L shell X-rays in the energy region 1 - 3 MeV. K shell ionization cross-sections and L shell production cross-sections have been derivedfrom the respective yields. The K shell ionization cross-sections have been compared with the results of other workers and the predictions of the Binary Encounter Approximation (BEA), Constrained Binary Encounter Approximation (CBEA), Plane Wave Born Approximation (PWBA) and PWBA with different modifications. The La, L8, Ly and total L X-ray production cross-sections and σLa/Lα' σLa/σLß and σLa/σLϒ ratios  for the elements Au, Pt, Dy and Nd and the total L x-ray production cross-sections for In and Sn have been calculated. These have been compared with the results of other workers and the predictions of PWBA and CBEA. Thin target measurements have been made to check the ratios obtained from the thick targets. Exploratory analysis has been performed and equations usefulto the