| Abstract: | It is shown that the ejection of material is explosive, the material emerging as jets moving at 20 km/sec. This supersonic flow produces a shock wave in the plasma. The main source of emission by the evaporated material lies in the jets and in the zones of the shock wave, these determining the character of the spectrum. Spectra recorded with a laser show a strong continuous background, together with line broadening and reversal, as well as absorption lines. The character of the spectrum is independent of the energy density of the laser radiation, but it is very much affected by the air pressure. |
