A method for continuous measurement of radon in groundwater for earthquake prediction
A practical method of continuous measurement of radon in groundwater for earthquake prediction, especially suitable for field observation is described. The detector consists of a ZnS scintillation chamber for alpha counting and a separation chamber in which radon is emanated from groundwater to the gaseous phase. The radon concentration in the gaseous phase equilibrates with that in water according to the distribution coefficient. Alpha activities of radon and its daughters (/sup 218/Po and /sup 214/Po) in the scintillation chamber are counted and recorded continuously. The counting rate of about 1000 cpm/10/sup -10/ Ci Rn/1 is obtained by the detector, which has an effective volume of 1.6 1.
- Research Organization:
- Radioisotope School, Japan Atomic Energy Research Institute, Honkomagome, Bunkyo-ku, Tokyo, Japan
- OSTI ID:
- 7326019
- Journal Information:
- J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 82:8; ISSN JGREA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Aquatic-- Radioactive Materials Monitoring & Transport-- Water-- (1987)
54 ENVIRONMENTAL SCIENCES
ALPHA DETECTION
CHARGED PARTICLE DETECTION
EARTHQUAKES
ELEMENTS
FORECASTING
GROUND WATER
HYDROGEN COMPOUNDS
MEASURING INSTRUMENTS
METALS
MONITORING
NATURAL RADIOACTIVITY
NONMETALS
OXYGEN COMPOUNDS
POLONIUM
RADIATION DETECTION
RADIATION DETECTORS
RADIOACTIVITY
RADON
RARE GASES
SCINTILLATION COUNTERS
SEISMIC DETECTION
SEISMIC EVENTS
WATER