Feasibility of using electronic quenching to eliminate halogen gas in Geiger--Muller detectors in aircraft oil gauging systems
The feasibility of electronic quenching was studied for Geiger-Muller (GM) radiation detectors used in aircraft oil gauging systems. A solid-state, variable-parameter quenching circuit was used which employed a multivibrator and a high-voltage transistor to reduce the applied voltage on the detector. The GM detectors which were tested included halogen-quenched counters formerly used in aircraft oil systems, as well as locally manufactured GM tubes filled to 100-200 torr of combinations of Ar, CO/sub 2/, H/sub 2/, N/sub 2/, and Ne. Experiments with operational halogen-quenched tubes indicated that with electronic quenching, an increased voltage operating range and tube counting lifetime are possible. The results for inoperable halogen-quenched detectors and for detectors containing no quenching gas were mostly inconclusive. (GRA)
- Research Organization:
- Air Force Inst. of Tech., Wright-Patterson AFB, Ohio (USA). School of Engineering
- OSTI ID:
- 7342902
- Report Number(s):
- AD-A-020999
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
440105* -- Radiation Instrumentation-- Radiometric Instruments-- (-1987)
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AIRCRAFT
ELECTRONIC CIRCUITS
GEIGER-MUELLER COUNTERS
LEVEL INDICATORS
LUBRICANTS
LUBRICATING OILS
MEASURING INSTRUMENTS
PETROLEUM PRODUCTS
RADIATION DETECTORS
RADIOMETRIC GAGES