Exotic Dense-Matter States Pumped by a Relativistic Laser Plasma in the Radiation-Dominated Regime

Colgan, J., Abdallah, J., Faenov, A. Ya, Pikuz, S.A., Wagenaars, E., Booth, N., Culfa, O., Dance, R.J., Evans, R.G., Gray, R.J., Kaempfer, T., Lancaster, K.L., McKenna, P., Rossall, A. K., Skobelev, I.Yu, Schulze, K.S., Uschmann, I., Zhidkov, A.G. and Woolsey, N.C. (2013) Exotic Dense-Matter States Pumped by a Relativistic Laser Plasma in the Radiation-Dominated Regime. Physical Review Letters, 110 (12). p. 125001. ISSN 0031-9007

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Abstract

In high-spectral resolution experiments with the petawatt Vulcan laser, strong x-ray radiation of KK hollow atoms (atoms without n=1 electrons) from thin Al foils was observed at pulse intensities of 3×1020  W/cm2. The observations of spectra from these exotic states of matter are supported by detailed kinetics calculations, and are consistent with a picture in which an intense polychromatic x-ray field, formed from Thomson scattering and bremsstrahlung in the electrostatic fields at the target surface, drives the KK hollow atom production. We estimate that this x-ray field has an intensity of >5×1018  W/cm2 and is in the 3 keV range.

Item Type:	Article
Subjects:	Q Science > QC Physics
Schools:	School of Computing and Engineering
Related URLs:	Author
Depositing User:	Andrew Rossall
Date Deposited:	13 Apr 2016 10:49
Last Modified:	02 Apr 2018 09:00
URI:	http://eprints.hud.ac.uk/id/eprint/26813

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