FOREX: a fiber-optics diagnostic system for study of materials at high temperatures and pressures
We have successfully fielded a Fiber Optics Radiation Experiment system (FOREX) designed for measuring material properties at high temperatures and pressures in 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.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5076261
- Report Number(s):
- UCRL-87284; CONF-820822-8; ON: DE82019437
- Resource Relation:
- Conference: 26. technical symposium and exhibition of the International Society for Optical Engineering, San Diego, CA, USA, 21 Aug 1982
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
NUCLEAR EXPLOSIONS
MATERIALS TESTING
OPTICAL EQUIPMENT
DESIGN
PERFORMANCE
UNDERGROUND EXPLOSIONS
CAMERAS
DATA TRANSMISSION
EXPERIMENTAL DATA
FIBER OPTICS
GEOLOGIC DEPOSITS
REMOTE SENSING
STREAK PHOTOGRAPHY
COMMUNICATIONS
DATA
EQUIPMENT
EXPLOSIONS
INFORMATION
NUMERICAL DATA
PHOTOGRAPHY
TESTING
450200* - Military Technology
Weaponry
& National Defense- Nuclear Explosions & Explosives
440300 - Miscellaneous Instruments- (-1989)