Gm Bagi Bagi Char 11l [2021] ##
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The design study of 100 kJ CO 2 laser module for inertial fusion confinement is in progress. The basic requirement for the design of a 100 kJ laser is that the structure should be simple enough so as to be one module which can be compiled to set up a 1 MJ system. The requirements imposed on the design are the single gain medium to extract 100 kJ, the multi-pass amplification to achieve high efficiency, laser beam passing the gain medium many times, the possibility to preserve the arbitrary angle of beam injection, and the possibility of construction based on the established or tractable techniques. The gain medium of cylindrical shape was adopted to preserve all directional access with equal configuration. Demonstration experiments are planned to find out the optimized condition regarding to the vibrational relaxation, the time interval of each passage of a laser pulse, gas mixture and pressure, and pumping condition. The gain medium of cylindrical shape was adopted to preserve all directional access with equal configuration. Demonstration experiments are planned to find out the optimized condition regarding to the vibrational relaxation, the time interval of each passage of a laser pulse, gas mixture and pressure, and pumping condition. The optical design of one beam for a 100 kJ test module is presented. This optical design named PENTAGONAL 10 has the following features; compact optics, high parasitic oscillation threshold, and the same intervals of multiple passing for energy extraction with four beams. The laser is an electron beam (E-beam)-controlled discharge laser. An electric power source and feed through were also studied. The construction of a 100 kJ laser system will be possible with the conventional techniques. (Kato, T.) 84d34552a1