10 research outputs found
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Multiple-frame IR photo-recorder KIT-3M
This paper reports the experimental results of a high-speed multi-frame infrared camera which has been developed in Sarov at VNIIEF. Earlier [1] we discussed the possibility of creation of the multi-frame infrared radiation photo-recorder with framing frequency about 1 MHz. The basis of the photo-recorder is a semiconductor ionization camera [2, 3], which converts IR radiation of spectral range 1-10 micrometers into a visible image. Several sequential thermal images are registered by using the IR converter in conjunction with a multi-frame electron-optical camera. In the present report we discuss the performance characteristics of a prototype commercial 9-frame high-speed IR photo-recorder. The image converter records infrared images of thermal fields corresponding to temperatures ranging from 300 C to 2000 C with an exposure time of 1-20 {micro}s at a frame frequency up to 500 KHz. The IR-photo-recorder camera is useful for recording the time evolution of thermal fields in fast processes such as gas dynamics, ballistics, pulsed welding, thermal processing, automotive industry, aircraft construction, in pulsed-power electric experiments, and for the measurement of spatial mode characteristics of IR-laser radiation
Methods of spatiotemporal measurements of line X radiation generated in laser plasmas on the Iskra-5 facility
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Final report task order number B239641 between the Regents of the University of California and Institute of Experimental Physics task 2: Switch development.
The LLNL project of the pulsed power system for the National Ignition Facility requires a switch with the following operational parameters: peak current of 400 kA, the transferred charge of 150 C, operating voltage of 25 kV, and reliable operating life of 10,000 shots. A review of high-power switches is given with detailed studies on vacuum switches and semiconductor switches