Ultrashort 1-kHz laser plasma hard x-ray source.
We achieved a continuous, stable, ultrashort pulse hard x-ray point source by focusing 1.8-W, 1-kHz, 50-fs laser pulses onto a novel, 30-microm -diameter, high-velocity, liquid-metal gallium jet. This target geometry avoids most of the debris problems of solid targets and provides nearly 4pi illumination. Photon fluxes of 5x10(8) photons/s are generated in a two-component spectrum consisting of a broad continuum from 4 to 14 keV and strong K(alpha) and K(beta) emission lines at 9.25 and 10.26 keV. This source will find wide use in time-resolved x-ray diffraction studies and other applications.
Korn
Georg
G
Thoss
Andreas
A
Stiel
Holger
H
Vogt
Ullrich
U
Richardson
Martin
M
Elsaesser
Thomas
T
Faubel
Manfred
M