An x-ray technique for precision laser beam synchronization
Conference
·
OSTI ID:10173008
A new x-ray technique for recording the relative arrival times of multiple laser beams at a common target with better than {+-} 10 ps accuracy has been implemented at the Nova laser facility. 100 ps, 3{omega} Nova beam are focused to separate locations on a gold ribbon target viewed from the side. The measurement consists of using well characterized re-entrant x-ray streak cameras for 1-dimensional streaked imaging of the > 3 keV x-rays emanating from these isolated laser plasmas. After making the necessary correction for the differential laser, x-ray and electron transit times involved, timing offsets as low as {+-} 7 ps are resolved, and on subsequent shots, corrected for, verified and independently checked. This level of synchronization proved critical in meeting the power balance requirements for indirectly-driven pulse-shaped Nova implosions.
- 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:
- 10173008
- Report Number(s):
- UCRL-JC--115599; CONF-940552--18; ON: DE94016449
- Country of Publication:
- United States
- Language:
- English
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