Dependence of keV x-ray generation on the temporal and spatial separation of two KrF laser pulses.

Examines the effect of preformed plasmas on kiloelectronvolt x-ray generation for the case of low energy picosecond ultraviolet laser pulses. Factors that affect a pair of KrF laser pulses; Information on the gain recovery time for an excimer laser; Description of the experimental layout of the beam delay system and target chamber system; Details of the effective plasma profile observed by the second laser pulse.