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X-ray emission from thin-foil laser-produced plasmas

Published online by Cambridge University Press:  09 March 2009

L. Gizzi
Affiliation:
Istituto di Fisica Atomica e Molecolare, CNR, Via del Giardino, 7, 56100 Pisa, Italy
D. Batani
Affiliation:
Istituto di Fisica Atomica e Molecolare, CNR, Via del Giardino, 7, 56100 Pisa, Italy
V. Biancalana
Affiliation:
Istituto di Fisica Atomica e Molecolare, CNR, Via del Giardino, 7, 56100 Pisa, Italy
A. Giulietti
Affiliation:
Istituto di Fisica Atomica e Molecolare, CNR, Via del Giardino, 7, 56100 Pisa, Italy
D. Giulietti
Affiliation:
Istituto di Fisica Atomica e Molecolare, CNR, Via del Giardino, 7, 56100 Pisa, Italy

Abstract

We studied X-ray emission from laser plasmas produced by irradiation of thin plastic foils with 1.064-μm Nd laser light at intensity up to 2 x 1013 W/cm2 with 3-ns pulses. The level of X-ray emission at different spectral windows was measured versus laser intensity and foil thickness. The electron temperature of the X-ray source was also measured. At intensity above 6 x 1012 W/cm2 our data showed the formation of nonthermal tails in the X-ray spectrum, which has been related to two plasmon decay instability.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1992

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