Gain and temperature in a slit nozzle supersonic chemical oxygen-iodine laser with transonic and supersonic injection of iodine

Two-stage ejector based pressure recovery system for small scale SCOIL

“…A recent breakthrough in the development of COIL systems is the use of advanced ejector nozzles, which not only provide excellent gain but also allow the generation of a high total pressure active medium. In this context, recently, various approaches: employing ejector nozzles for achieving high pressure laser operation as suggested by Zagidullin and Nikolaev [6], efficient X-wing supersonic nozzles utilizing stream wise vortex generation mechanism by Endo et al [7,8], transonic and supersonic iodine injection mechanism by Rosenwaks et al [9] which have demonstrated COIL efficiencies of $30 % have been suggested. The conditions achieved through such type of nozzles are extremely favorable for the design of ejector based pressure recovery system.…”