Natural widths of hypersatellite K-X-ray lines and lifetimes of double K-hole states in mid-Z atoms

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:235

Article; Proceedings Paper

Rzadkiewicz, J ; Chmielewska, D ; Sujkowski, Z ; Berset, M ; Dousse, JC ; Maillard, YP ; Mauron, O ; Raboud, PA ; Polasik, M ; Slabkowska, K ; Hoszowska, J ; Pajek, M

关键词: K-X-ray hypersatellites;    line shapes and linewidths;    relative intensities;    MCDF calculations;   

DOI  :  10.1016/j.nimb.2005.03.155

来源: Elsevier

【 摘 要 】

K-X-ray spectra of Zr, Nb, Mo and Pd targets bombarded with 250 MeV carbon and 360 MeV oxygen ions are studied with high resolution diffraction spectrometry. Relative yields and natural widths of the K-h alpha(1,2) hypersatellite lines are determined and compared with those of the diagram lines. The widths of K-h alpha(1,2) lines are compared with the new phenomenological formula which takes into account the retardation of the K-h alpha(1) transition in the LS coupling scheme. The data significantly exceed the expected values. Deduced lifetimes of the double K-hole states are shorter than expected. (c) 2005 Elsevier B.V. All rights reserved.

【 授权许可】

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