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Improved Track Etch alpha-particle detectors have been calibrated against standard radon atmospheres. Detectors were exposed in several configurations to permit the measurement of radon-only unaffected by radon daughter concentrations. A statistical analysis of sensitivity shows that reliable readings can be made down to a 0.2 (pCi/l.)-month exposure. Track Etch detectors are integrating and passive and may be of use in a variety of radon monitoring situations.
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Alter et al. (1981) studied this question.
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