High energy density matter generation using a focused soft-X-ray laser for volumetric heating of thin foils

0364296 - FZÚ 2012 RIV GB eng J - Článek v odborném periodiku
Rus, Bedřich - Mocek, Tomáš - Kozlová, Michaela - Polan, Jiří - Homer, Pavel - Fajardo, M. - Foord, M.E. - Chung, H. - Moon, S.J. - Lee, R. W.
High energy density matter generation using a focused soft-X-ray laser for volumetric heating of thin foils.
High energy density physics. Roč. 7, č. 1 (2011), s. 11-16. ISSN 1574-1818. E-ISSN 1878-0563
Grant CEP: GA ČR GA202/05/2316
Grant ostatní: AV ČR(CZ) M100100911
Výzkumný záměr: CEZ:AV0Z10100523
Klíčová slova: laboratory X-ray lasers * volumetric heating * aluminum transmission * polyimide transmission * warm dense matter
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 1.595, rok: 2011
http://www.sciencedirect.com/science/article/pii/S1574181810000406

We report on time-resolved transmission measurements of a 21.2 nm X-ray laser through thin Al and polyimide foils in the intensity range 10¹⁰ - 10¹² Wcm^-2. Absolute time-integrated and relative time dependent transmission measurements indicate significant differences with cold opacity data, due to the heating, leading to partially ionized states with temperatures of 0.5-20 eV. The transmission data are compared with simulations that qualitatively reproduce the time-dependent ransmission measurements and demonstrate the importance of including detailed tomic absorption processes in the warm dense matter regime.
Trvalý link: http://hdl.handle.net/11104/0199817