期刊
RADIATION PHYSICS AND CHEMISTRY
卷 70, 期 1-3, 页码 149-172出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2003.12.010
关键词
X-ray photoionization; He photoionization; double-K ionization; nondipole photoionization; two-photon decay; nuclear excitation by electronic transition (NEET)
Over the past decade, modern synchrotron radiation sources have provided continuously tunable, intense well-collimated beams of hard X-rays. Our group has exploited such beams, in the energy range 2-100 keV, to study higher-order processes in atomic photoionization and vacancy decay which were hitherto difficult to observe and we review five specific examples of that work here. These topics include high-energy photoionization of helium, nondipolar photoionization, double K-shell ionization, two-photon decays of inner-shell vacancies, and nuclear excitations by electronic transition. (C) 2004 Elsevier Ltd. All rights reserved.
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