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Brief Communications

Determination of the electron temperature of a laser plasma from continuous recombination radiation of multiply charged ions

R. N. Medvedev, N. A. Solov'ev


Abstract: A description is given of a high-luminosity x-ray spectrograph with vertical focusing. This instrument was used to record the continuous recombination spectrum of the hydrogen-like Mg XII ion. The main advantage of the system employed was a combination of a high luminosity and a wide viewing angle. The continuous spectrum of a laser plasma was used to determine its electron temperature. When the power density of the laser flux reaching a flat magnesium target was q ~5×10¹⁴ W/cm², the temperature of the laser plasma was found to be 330 ± 60 eV.

UDC: 533.9+621.039.66+523.035.33+621.375.826

PACS: 52.70.Kz, 52.25.Mg, 78.70.En

Received: 27.12.1978

 English version: Soviet Journal of Quantum Electronics, 1978, 8:10, 1285–1287