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[en] Results from experiments are presented that demonstrate the process leading to isotropization of the radiation field in a cavity heated by thermal X rays. Cylindrical cavities in gold, 500 μm in diameter, were heated from one side by thermal radiation produced by a laser plasma. The temperature profile along the cylinder was obtained by measuring the radiation emanating from a small slit parallel to the axis. The results are in good agreement with a theoretical model that predicts the axial temperature profile due to multiple absorption and re-emission of thermal radiation by the cavity wall. (author). 8 refs, 2 figs
Source
International Atomic Energy Agency, Vienna (Austria); Proceedings series; 562 p; ISBN 92-0-101293-4; 
; Oct 1993; p. 105-108; IAEA; Vienna (Austria); 14. international conference on plasma physics and controlled nuclear fusion research; Wuerzburg (Germany); 30 Sep - 7 Oct 1992; IAEA-CN--56/B-2-5-1; ISSN 0074-1884;
; Oct 1993; p. 105-108; IAEA; Vienna (Austria); 14. international conference on plasma physics and controlled nuclear fusion research; Wuerzburg (Germany); 30 Sep - 7 Oct 1992; IAEA-CN--56/B-2-5-1; ISSN 0074-1884;