Berlin 2001 – wissenschaftliches Programm
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A: Atomphysik
A 5: Posters Tuesday (Photoionisation, Multi Photon Processes)
A 5.4: Poster
Dienstag, 3. April 2001, 12:30–15:00, AT3
ON THE SHORT LIVED RADIOISOTOP IONIZATION — •Viorica Gheorghe1,2 and G. Huber1 — 1Institut für Physik, Johannes Gutenberg Universität, 55099 Mainz — 2National Institute for Laser, Plasma and Radiation, Bucharest, Romania
In this paper a simulation based on analytical models [1,2] describing the step-wise ionization of Beryllium exposed to two-colour pulsed laser excitations is presented. We displayed the evolution of the population in the autoionizing state of Beryllium, but also on the different levels which are intermediate steps of the studied ionization process. The experimental parameters for which the ionization process of Beryllium is optimal were distinguished.
This simulation is particularly important in order to identify the
conditions for an efficient ionization of
a short lived radioisotope from the resonance ionization laser ion
source (RILIS) at CERN-ISOLDE [3].
[1] V. N. Gheorghe, Appl. Phys. 46, 185-190 (1988)
[2] D. Boudreau, P. Ljungberg, O. Axner, Spectrochimica Acta Part 51, 413-428 (1996)
[3] V. Sebastian, R. Catherall, V. N. Fedoseyev, U. Georg, G. Huber, Y. Jadin, O. Jonsson, U. Köster, M. Koizumi, K. -L. Kratz, E. Kugler, J. Lettry, V. I. Mishin, H. L. Ravn, C. Tamburella, A. Wöhr and the ISOLDE Collaboration, AIP Conf. Proceedings 455, ENAM’98, Bellaire, Michigan, USA, 126 (1998)