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Indirect-drive laser fusion relies on the generation of intense thermal radiation inside a cavity of high-Z material. Gold cavities of various configurations with diameters of 1-3 mm were heated by short wavelength lamda = 0.35) laser pulses generated by the Gekko XII Nd-glass laser with energies up to 5 kJ and a pulse duration of 0.8 - 0.9 ns. The radiation heat wave in the wall of the cavity could be observed by the burn-through of thin gold foils incorporated into the wall of the cavity. Brightness temperatures of the confined thermal radiation in the cavity of up to 240 eV were measured. The results are in agreement with theoretical predictions.

Additional information

Authors: SIGEL R ET AL., Max-Planck-Institut für Quantenoptik, Garching bei München (DE);NISHIMURA H ET AL., Institute of Laser Engineering, Osaka University, Osaka (JP)
Bibliographic Reference: Paper presented: 13th International Conference on Plasma Physics and Controlled Nuclear Fusion Research, Washington DC (US), Oct. 1-6, 1990
Availability: Available from (1) as Paper EN 35705 ORA
Record Number: 199011689 / Last updated on: 1994-12-02
Original language: en
Available languages: en
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