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22 March 1983 FOREX-A Fiber Optics Diagnostic System For Study Of Materials At High Temperatures And Pressures
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Abstract
We have successfully fielded a Fiber Optics Radiation EXperiment system (FOREX) designed for measuring material properties at high temperatures and pressures on an underground nuclear test. The system collects light from radiating materials and transmits it through several hundred meters of optical fibers to a recording station consisting of a streak camera with film readout. The use of fiber optics provides a faster time response than can presently be obtained with equalized coaxial cables over comparable distances. Fibers also have significant cost and physical size advantages over coax cables. The streak camera achieves a much higher information density than an equivalent oscilloscope system, and it also serves as the light detector. The result is a wide bandwidth high capacity system that can be fielded at a relatively low cost in manpower, space, and materials. For this experiment, the streak camera had a 120 ns time window with a 1.2 ns time resolution. Dynamic range for the system was about 1000. Beam current statistical limitations were approximately 8% for a 0.3 ns wide data point at one decade above the threshold recording intensity.
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. E. Smith and F. Roeske "FOREX-A Fiber Optics Diagnostic System For Study Of Materials At High Temperatures And Pressures", Proc. SPIE 0355, Fiber Optics: Short-Haul and Long-Haul Measurements and Applications I, (22 March 1983); https://doi.org/10.1117/12.934016
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