Volume 41, Number 5, March I 1998
|Page(s)||495 - 500|
|Section||Physics of gases, plasmas, and electrical discharges|
|Published online||01 September 2002|
Experimental observation of the shift and width of the aluminium K absorption edge in laser shock-compressed plasmas
Physics Department, University of Essex, Colchester, UK
2 LULI, CNRS, Ecole Polytechnique, Palaiseau, France
3 LPME, CNRS, Ecole Polytechnique, Palaiseau, France
4 Dipartimento di Fisica, Università degli Studi di Milano and INFM, Italy
Accepted: 12 January 1998
Experimental measurements of the shift and width of the aluminium K-absorption edge in laser shock-compressed plasma is presented. The spectrometer used in these experiments allows an accurate wavelength calibration and fiduciary and hence provides precise measurements of both the shift and the width of the absorption edge. Results have been obtained for compressions up to approximately and temperatures up to about 1.5 eV. The values of shift and width are compared with a new model with which there is very good agreement.
PACS: 52.25.Nr – Emission, absorption, and scattering of X and γ radiation / 52.50.Lp – Plasma production and heating by shock waves and compression / 52.70.La – X-ray and γ-ray measurements
© EDP Sciences, 1998
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