Time-resolved x-ray transmission grating spectrometer for studying laser-produced plasmas.
The development of a new time-resolved x-ray spectrometer is reported in which a free-standing x-ray transmission grating is coupled to a soft x-ray streak camera. The instrument measures continuous x-ray spectra with 20-psec temporal resolution and moderate spectral resolution (deltalambda >/= 1 A) over a broad spectral range (0.1-5 keV) with high sensitivity and large information recording capacity. Its capabilities are well suited to investigation of laser-generated plasmas, and they nicely complement the characteristics of other time-resolved spectroscopic techniques presently in use. The transmission grating spectrometer has been used on a variety of laser-plasma experiments. We report the first measurements of the temporal variation of continuous low-energy x-ray spectra from laser-irradiated disk targets.
Ceglio
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NM
University of California, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550, USA.
Kauffman
R L
RL
Hawryluk
A M
AM
Medecki
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H