A new method for automatic measurement of low-level radon in water
作者： Páll Theodórsson
DOI: 10.1016/S0969-8043(96)00075-9
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摘要: Abstract A new single phototube liquid scintillation counting system for automatic determination of 222Rn in ground water earthquake prediction is described. About 40% radon transferred from 1.0 L with a stream air into 25 ml toluene sample vial. Delayed coincidence 214Bi and its decay product, 214Po reduces the background to 0.02 cpm. The detection efficiency above 90%. Water containing 20 mBq/L can be measured 10% accuracy 3 h.
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sci-hub.se 参考文章(2)
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