Laser plasma diagnostics of dense plasmas

Abstract

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Angular distribution and conversion of multi-keV L-shell X-ray sources produced from nanosecond laser irradiated thick-foil targets

“…Multi-keV L-shell X-ray sources produced with long pulse laser irradiated solid targets have been used frequently as heating or backlighting sources (Pikuz et al, 2002;Glenzer et al, 2003;Riley et al, 2007;Schollmeier et al, 2006;Riley et al, 2002a;Glendinning et al, 1995;Scott et al, 2001). The conversion efficiency of multi-keV L-shell X-ray sources have mainly been explored with short pulse laser beams (Kauffman, 1991;Phillion & Hailey, 1986;Glendinning et al, 1995;Eidmann & Schwanda, 1991). A few papers explored the multi-keV L-shell emission with long pulse laser (Eidmann & Schwanda, 1991;Glibert et al, 1980).…”

High-energy, high-resolution x-ray imaging on the Trident short-pulse laser facility

“…Many HED experiments ultimately are carried out on large facilities such as the pulsed power machine Z ͑Ref. [4][5][6][7][8] The current technique used to alleviate this difficulty is the use of short-pulse laser interactions with the subsequent production of nonthermal electron excited K␣ emission. 2͒ and eventually NIF.…”

X-ray yield scaling studies performed on the OMEGA laser

“…[3][4][5][6][7][8] In addition, the drastic decrease in x-ray conversion efficiency with heavier target materials has been demonstrated experimentally. [9][10][11] The problem encountered by an experimentalist designing an x-ray backlighter source is the scarcity of data points and the confusion created by discrepancies in the available data. The discrepancies can often be explained by the differences between lasers and is manifested by differences in the x-ray spectra.…”