Anomalous phenomena in CO2 laser-produced plasma at medium-intensity laser radiation

Anomalous phenomena were investigated in CO2 laser-produced plasma with Isub(L)< or approx. 5x1011W.cm-2, and the following parameters were estimated from the experimental results: reflection coefficient, electron temperature, hot electron temperature, energy of thermal and fast ions, and the spatial distribution of X-rays emitted from the plasma. The nature of anomalous absorption, hot electrons, fast ions and other observed effects is described on the basis of the analysis and calculations. (author)