Abstract

We develop a pulsed hard x-ray Kα source at 17.4 keV produced by the interaction of a multi-terawatt peak power infrared femtosecond laser pulse with a thick molybdenum (Mo) target at a 100 Hz repetition rate. We measure the highest Mo Kα photon production reported to date corresponding to a Kα photon flux of 1×1011ph/(sr·s) and an estimated peak brightness of 2.5×1017ph/(s·mm2·mrad2(0.1%bandwidth)) at 5×1018W/cm2 driving laser intensity.

© 2018 Optical Society of America

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