M-X-ray production cross-sections for 0.2-2 MeV deuterons

M-X-ray production cross-sections by deuterons of energies 0.2-2.0 MeV were measured systematically for selected heavy elements between Ta and Th and the results are reported for the most intense M-alpha beta(M4,5N6,7), M-gam ma(M3N4,5) and M3O4,5 M-X-ray transitions. The measured M-X-ray production cross-sections are found to be universal with respect to M-shell scaled vel ocity xi(M), allowing thus a simple parameterization of the experimental de uteron-induced M-X-ray cross-sections for applications. This parameterizati on is found to be accurate within a few percent. The measured M-X-ray cross -sections for deuterons are compared with available theoretical calculation s of M-shell ionization by charged particles. (C) 2000 Elsevier Science B.V . All rights reserved.