Role of relativistic laser intensity on isochoric heating of metal wire targets

0547246 - FZÚ 2022 RIV US eng J - Journal Article
Martynenko, A.S. - Pikuz, S.A. - Antonelli, L. - Barbato, F. - Boutoux, G. - Giuffrida, Lorenzo - Honrubia, J. J. - Hume, E. - Jacoby, J. - Khaghani, D. - Lancaster, K. - Neumayer, P. - Rosmej, O. N. - Santos, J.J. - Turianska, O. - Batani, D.
Role of relativistic laser intensity on isochoric heating of metal wire targets.
Optics Express. Roč. 29, č. 8 (2021), s. 12240-12251. ISSN 1094-4087
Research Infrastructure: ELI Beamlines III - 90141
Institutional support: RVO:68378271
Keywords : dense * diagnostics * plasma
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 3.833, year: 2021
Method of publishing: Open access

In a recent experimental campaign, we used laser-accelerated relativistic hot electrons to ensure heating of thin titanium wire targets up to a warm dense matter (WDM) state [EPL 114, 45002 (2016)]. The WDM temperature profiles along several hundred microns of the wire were inferred by using spatially resolved X-ray emission spectroscopy looking at the Ti K-alpha characteristic lines. A maximum temperature of similar to 30 eV was reached. Our study extends this work by discussing the influence of the laser parameters on temperature profiles and the optimisation of WDM wire-based generation. The depth of wire heating may reach several hundreds of microns and it is proven to be strictly dependent on the laser intensity.
Permanent Link: http://hdl.handle.net/11104/0323534