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Optimization study of a photoionization experiment of a laser-produced He-like plasma by an X-ray source

Published online by Cambridge University Press:  09 March 2009

C. A. Back ,
P. Renaudin ,
C. Chenais-Popovics  and
J. C. Gauthier
C. A. Back
Affiliation:
Ecole Polytechnique, Laboratoire de Physique des Milieux Ionisés, 91128 Palaiseau, Cedex, France
P. Renaudin
Affiliation:
Ecole Polytechnique, Laboratoire de Physique des Milieux Ionisés, 91128 Palaiseau, Cedex, France
C. Chenais-Popovics
Affiliation:
Ecole Polytechnique, Laboratoire de Physique des Milieux Ionisés, 91128 Palaiseau, Cedex, France
J. C. Gauthier
Affiliation:
Ecole Polytechnique, Laboratoire de Physique des Milieux Ionisés, 91128 Palaiseau, Cedex, France
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Abstract

A study of the effects of photoionization of a laser-produced plasma has been carried out by modeling the fluorescence of resonance lines due to cascades. The photoionization source is the X-ray M-band emission of a laser-produced high-Z plasma and it perturbs a ground state He-like aluminum plasma. Simulations have been performed to study the conditions necessary to maximize the fluorescence and guide future experiments. A collisional-radiative model is used to determine the optimal temperature and density of the pumped plasma, while hydrodynamic models are used to produce realistic plasma gradients and explore the optimum time delay of the photopumping.

Type
Research Article
Information
Laser and Particle Beams , Volume 10 , Issue 4 , December 1992 , pp. 793 - 799
Copyright
Copyright © Cambridge University Press 1992

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References

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