Optical fiducials for x-ray streak cameras at LLE
The incorporation of an optical timing fiducial onto a time-resolved x-ray streak record permits one to precisely relate the x-ray emission to the incident laser pulse. At the Laboratory for Laser Energetics, our approach to recording fiducials is twofold. In addition to recording the x-ray emission on a bifurcated photocathode, we also streak the incident laser light at 351 nm, which is scattered from the target and an independent signal at 4..omega../sub 0/ (264 nm), which is derived by frequency quadrupling a tiny fraction of the OMEGA laser driver output. The signal at 4..omega../sub 0/ is transported through the vacuum wall to the streak camera photocathode via fiber optics. A 200-A-circle aluminum layer on mica is utilized for the UV sensitive photocathode. We will present examples and further details of this system.
- Research Organization:
- Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299
- OSTI ID:
- 5405778
- Journal Information:
- Rev. Sci. Instrum.; (United States), Vol. 57:8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
LASER-PRODUCED PLASMA
PLASMA DIAGNOSTICS
OMEGA FACILITY
STREAK CAMERAS
X-RAY SPECTROMETERS
DESIGN
RESOLUTION
ALUMINIUM
COATINGS
LASER RADIATION
LASER TARGETS
OPTICAL SYSTEMS
PERFORMANCE
PHOTOCATHODES
TIME RESOLUTION
ULTRAVIOLET RADIATION
X RADIATION
CAMERAS
CATHODES
ELECTRODES
ELECTROMAGNETIC RADIATION
ELEMENTS
IONIZING RADIATIONS
MEASURING INSTRUMENTS
METALS
PLASMA
RADIATION DETECTORS
RADIATIONS
SPECTROMETERS
TARGETS
TIMING PROPERTIES
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