Reflectors with section shape of incomplete involute and imitation of involute for Xe flash-lamp array

The influence of geometry of reflector on pumping performance of Xe flash-lamp array are analyzed by Monto-Carlo simulation methods in this paper. A novel reflector is proposed, which is simile in form to involute, and has advantages of smaller width than that of standard involute. Simulation results by ray-tracing method show that the transport efficiency Em of pumping energy in the reflector of new geometric shape (imitation of involute) is 90% approximately, when its geometric modified index p ³ 0.80 in 6 Xe lamps cavity. The reflectors with section shape of incomplete involute or imitation of involute, as an altermative of standard involute, are useful to increase pumoing energy in Chinese SG-III high power laser facility, when it’s length of pumping cavity is shorter than that n