X-ray Spectroscopic Characterization of Shock-Ignition-Relevant plasmas

Acta Polytechnica

Oldoich Renner¹  Michal Šmíd¹  Luca Antonelli¹ 

关键词: hot electrons;    shock ignition;    laser-produced plasma;    X-ray spectroscopy;    K radiation.;   

DOI  :  

来源: Czech Technical University in Prague, Faculty of M

【 摘 要 】

Experiments with multilayer plastic/Cu targets performed at a PALS laser system aimed at the study of matter at conditions relevant to a shock ignition ICF scheme, and, in particular, at the investigation of hot electrons generation. Plasma temperature and density were obtained using high-resolution X-ray spectroscopy. 2D-spatially resolved quasi–monochromatic imaging was observing the hot electrons via fluorescence K emission in the copper tracer layer. Found values of plasma temperature 690 ± 10 eV, electron density 3 × 1022 cm-3 and the effective energy of hot electrons 45 ± 20 keV demonstrate the potential of X-ray methods in the characterization of the shock ignition environmental conditions.

【 授权许可】

Unknown