QUALITATIVE ANALYSIS OF THE POSSIBILITY OF IGNITION OF CONTROLLABLE THERMONUCLEAR FUSION B. A. Barikhin UDC 681.7.069.24+621.039.6 Results of a preliminary experiment on excitation of gaseous active media by hard radiation of an uncontrolled thermonuclear explosion are presented. Pulsed lasing of an HF laser with an energy output of 10 kJ and efficiency of 3% and of an excimer XeF laser with an output of 1 kJ and efficiency of 9% with a pulse duration of 2 nsec is obtaned. JEPTER7492019994 JEPTER749204