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Generation of x-ray pulses with rapid rise times to pump inner-shell photo-ionized x-ray lasing in carbon at 45 {angstrom}

Conference ·
OSTI ID:109656

An investigation of the rapid rise time of x-ray emission from targets heated by an ultrashort-pulse high-intensity optical laser was conducted for use as a pump for inner-shell photo-ionized x-ray lasing. Results of x-ray rise times from instantaneously heated Au rod targets show little benefit for using optical pulse widths less than 30 fs. Gain calculations for inner-shell photo-ionized lasing show that large gains can be obtained for pulse widths between 30 and 100 fs. Calculated spectra, using the hydrodynamic/atomic kinetics code LASNEX, from a 1 J, 65 fs FWHM pulse optical laser incident on a structured Au target gave a gain of 1 1.5 cm{sup {minus}1} in C at 45 {angstrom}.

Research Organization:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
109656
Report Number(s):
UCRL-JC--118103; CONF-950793--40; ON: DE96000337
Country of Publication:
United States
Language:
English

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