Phys. Rev. Lett. 86, 983 - 986 (2001)Near-Threshold Photoionization of Hydrogenlike Uranium Studied in Ion-Atom Collisions via the Time-Reversed Process |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1984: |
Th. Stöhlker1,2, X. Ma1,3, T. Ludziejewski4, H. F. Beyer1, F. Bosch1, O. Brinzanescu2,5, R. W. Dunford6, J. Eichler7, S. Hagmann8, A. Ichihara9, C. Kozhuharov1, A. Krämer1,2, D. Liesen2, P. H. Mokler1, Z. Stachura10, P. Swiat11, and A. Warczak11
1Gesellschaft für Schwerionenforschung, 64291 Darmstadt, Germany
2Institut für Kernphysik, University of Frankfurt, 60486 Frankfurt, Germany
3Institute of Modern Physics, Lanzhou 73000, China
4The Andrzej Sołtan Institute for Nuclear Studies, 05-400 Świerk, Poland
5National Institute for Laser Plasma and Radiation Physics, 76900 Bucharest-Magurele, Romania
6Argonne National Laboratory, Argonne, Illinois 60439
7Abteilung Theoretische Physik, Hahn-Meitner-Institut Berlin, 14109 Berlin, Germany
8Kansas State University, Manhattan, Kansas
9Japan Atomic Energy Research Institute, Tokai-mura Ibaraki 319-11, Japan
10Institute of Nuclear Physics, 31-342 Cracow, Poland
11Institute of Physics, Jagiellonian University, 30-059 Cracow, Poland
Received 18 August 2000
Radiative electron capture, the time-reversed photoionization process occurring in ion-atom collisions, provides presently the only access to photoionization studies for very highly charged ions. By applying the deceleration mode of the ESR storage ring, we studied this process in low-energy collisions of bare uranium ions with low- Z target atoms. This technique allows us to extend the current information about photoionization to much lower energies than those accessible for neutral heavy elements in the direct reaction channel. The results prove that for high- Z systems, higher-order multipole contributions and magnetic corrections persist even at energies close to the threshold.
©2001 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v86/p983
DOI: 10.1103/PhysRevLett.86.983
PACS: 32.80.Fb, 34.70.+e, 32.30.Rj, 34.80.Lx
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