Efficient multi-keV underdense laser-produced plasma radiators.
Novel, efficient x-ray sources have been created by supersonically heating a large volume of Xe gas. A laser-induced bleaching wave quickly ionizes the high- Z gas, and the resulting plasma emits x rays. This method significantly improves the production of hard x rays because less energy is lost to kinetic energy and sub-keV x rays. The conversion efficiency of laser energy into L-shell radiation between 4-7 keV is measured at approximately 10%, an order of magnitude higher than efficiencies measured from solid disk targets. This higher flux enables material testing and backlighting in new regimes and scales well to future high-powered lasers.
Back
C A
CA
Lawrence Livermore National Laboratory, L-21, P.O. Box 808, Livermore, California 94551, USA.
Grun
J
J
Decker
C
C
Suter
L J
LJ
Davis
J
J
Landen
O L
OL
Wallace
R
R
Hsing
W W
WW
Laming
J M
JM
Feldman
U
U
Miller
M C
MC
Wuest
C
C