A broadband laser plasma x-ray source for application in ultrafast chemical structure dynamics.
A plasma source free from characteristic emission lines is described, based on laser irradiation of a water jet in a helium atmosphere. Various key aspects of the laser interaction are presented along with practical characterization of the observed isotropic approximately 4-10 keV x-ray emissions, measurements of which indicate subpicosecond duration. Observations are consistent with a vacuum heating plasma mechanism at the helium-water interface and indicate strong potential for in-house ultrafast chemical structure dynamics application when coupled to contemporary detector developments.
Division of Chemical Physics, Lund University, PO Box 124, SE-22100 Lund, Sweden.
Wilfred
W
Fullagar
Michael
M
Harbst
Sophie
S
Canton
Jens
J
Uhlig
Monika
M
Walczak
Claes-Göran
CG
Wahlström
Villy
V
Sundström