Investigation of x-ray emission induced by hot electrons in dense Cu plasmas

0439497 - FZÚ 2015 RIV SE eng J - Journal Article
Šmíd, Michal - Renner, Oldřich - Rosmej, F.B. - Khaghani, D.
Investigation of x-ray emission induced by hot electrons in dense Cu plasmas.
Physica Scripta. T161, May (2014), s. 1-3. ISSN 0031-8949. E-ISSN 1402-4896
Grant - others:AVČR(CZ) M100101208
Institutional support: RVO:68378271
Keywords : dense plasma focus * X-ray and gamma-ray measurements * particle beam interactions in plasmas * plasma production and heating by laser beams
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 1.126, year: 2014

Spectral lines induced by the action of suprathermal electrons in a laser-irradiated (400 J, 1315 nm, 250 ps, I = 4 × 1016 W cm-2) Cu target were observed. A whole set of transitions between Kα and Heα lines originating from Be-like to Ne-like Cu was identified. The emission was modeled using the Flychk code; the resulting theoretical spectra were integrated over a wide range of bulk plasma temperatures and hot electron fractions to obtain good agreement with the experimental data. The simulation procedure used offers a basis for the development of alternative x-ray spectroscopic diagnostics for hot electrons.
Permanent Link: http://hdl.handle.net/11104/0242775