Irradiation of spherical microtargets with radiation of a 2 TW iodine laser

Experiments on irradiation of spherical nicrotargets with 150-170 μm diameter and 1 μm glass thickness filled with DT- gas up to 10-40 atm. pressure are conducted in the single-channel iodine ''Iskra 4'' laser with 1.315 μm radiation wavelength. The flow density of laser radiation on the target made up approximately 1015 W/cm2. Image of the target in the eigen X-ray radiation obtained by means of the obscure chamber permitted to determine that DT-gas is approximately 30 times compressed. In the result of the conducted investigations the power of the ''Iskra 4'' facility is increased up to 2TW at the expense of reducing duration of laser pulse from 1 to 0.3 ns practically without energy losses. Neutron yield of 105 at irradiation of spherical microtargets filled with DT-gas has been obtained for the first time by means of the iodine laser