Charge exchange signatures in x-ray line emission accompanying plasma-wall interaction

0386801 - FZÚ 2013 RIV GB eng J - Článek v odborném periodiku
Renner, Oldřich - Dalimier, E. - Liska, R. - Oks, E. - Šmíd, Michal
Charge exchange signatures in x-ray line emission accompanying plasma-wall interaction.
Journal of Physics: Conference Series. Roč. 397, č. 1 (2012), s. 1-6. ISSN 1742-6588. E-ISSN 1742-6596
Grant CEP: GA ČR GAP205/10/0814; GA ČR GAP208/10/2302; GA AV ČR IAAX00100903
Výzkumný záměr: CEZ:AV0Z10100523
Klíčová slova: laser-produced plasma * particle jets generation * plasma-wall interaction * x-ray spectroscopy * charge exchange
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech

Directional flows of energetic ions produced at laser-burnt-through foils were used to investigate transient phenomena accompanying the plasma interaction with surfaces of solid targets (known as plasma-wall interaction, PWI). The plasma jet launched from the rear surface of the Al foil was incident on the quasi-massive C target. The Al plasma x-ray self-emission recorded close to the C surface exhibit a dip structure which was attributed to the charge exchange between two stationary Coulomb centers represented by the Al XIII and fully stripped C ions. This identification of the charge exchange signatures is supported by hydrodynamic simulations of environmental conditions in the near-wall plasma and by predictions of complementary theoretical models. The agreement between the experiment and theory validates the first high precision x-ray spectroscopic identification of charge exchange phenomena accompanying the PWI.
Trvalý link: http://hdl.handle.net/11104/0216070