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Experimental Test of Resonant Absorption Theory Progress Report: January-March 1978
The initial progress in studying the interaction of an ultrashort CO/sub 2/ laser pulse with an overdense shock front is reported.
Experimental Test of Resonant Absorption Theory Progress Report: July-September 1978
Engineering of the various components of the experiment is discussed, and the first experiments are described. In the last three months engineering has been virtually completed on all aspects of this experiment, and the various components of the apparatus have been successfully integrated and utilized.
Experimental Test of Resonant Absorption Theory Progress Report: October-December 1978
We report our first successful observation of resonant electron acceleration in the laser shock front interaction experiment.
Experimental Test of Resonant Absorption Theory Progress Report: July-September 1979
The scaling of the hot electron temperature, T/sub h/, with laser intensity, I, has been studied with the laser-shockfront interaction apparatus. The preliminary result for 500 psec laser pulses of intensity I approx. 10/sup 14/ W/cm/sup 2/ is T/sub h/ infinity I/sup ..cap alpha../, where ..cap alpha.. = .35 to .40.
Experimental Test of Resonant Absorption Theory Progress Report: October-December 1979
The laser-shockfront interaction experiment has been performed using the 100 psec FWHM pulses available from our newly installed high-pressure laser amplifier. The interaction time is so short that the hydrodynamic expansion which distinguishes H/sub 2/ targets from D/sub 2/ is absent. Good experimental reproducibility results.
Experimental Test of Resonant Absorption Theory Progress Report: January-March 1979
The first measurements of the angular and energy spectrum of RA electrons and the first experiments on D/sub 2/ gas are reported.