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Proceedings Paper

Photoionization of an He-like aluminum plasma by a laser-produced x-ray source
Author(s): Claude J. Chenais-Popovics; Christina A. Back; P. Renaudin; Jean-Paul Geindre; Jean-Claude J. Gauthier
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Paper Abstract

We present preliminary experiments and calculations performed to optimize the photoionization of an He-like aluminum plasma. The high emissivity of the 3d-4f M-band of tantalum or tungsten is used as the pump. The plasmas are produced by two 500 ps duration beams of a frequency doubled Nd-glass laser. The pump beam is delayed by 1 ns with respect to the main beam. The Al plasma ionization state has been measured with K-alpha absorption measurements. X-ray diodes and space-resolving crystal spectrographs have been used to measure the intensity of the pump source in the desired spectral range. Optimization of the pumping scheme is analyzed with a numerical description of the photopumping process by a collisional-radiative modeling of the Al plasma including the X-ray pump.

Paper Details

Date Published: 5 February 1992
PDF: 10 pages
Proc. SPIE 1551, Ultrashort Wavelength Lasers, (5 February 1992);
Show Author Affiliations
Claude J. Chenais-Popovics, Ecole Polytechnique (France)
Christina A. Back, Ecole Polytechnique (United States)
P. Renaudin, Ecole Polytechnique (France)
Jean-Paul Geindre, Ecole Polytechnique (France)
Jean-Claude J. Gauthier, Ecole Polytechnique (France)

Published in SPIE Proceedings Vol. 1551:
Ultrashort Wavelength Lasers
Szymon Suckewer, Editor(s)

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