Abstract
A Radionuclide Aerosol Sampler/Analyzer (RASA Mark 4) has been developed at PNNL for use in verifying the Comprehensive Nuclear Test Ban Treaty (CTBT). The RASA Mark 4 collects about 20,000 m3 of air per day on a 0.25 m2 filter. This filter is automatically decayed for 24 hours, then advanced to a germanium detector for a 24 hour count. This system has been operated in Richland, WA for a limited period of time in a predeployment testing phase. The germanium-detector gamma-ray spectra have been analyzed by automatic spectral analysis codes to determine Minimum Detectable Concentrations (MDC) for a number of isotopes of interest. These MDC's have been compared to other atmospheric measurements in the field and in the laboratory.
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http://www.cdidc.org/, 1997.
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McKinnon, A.D., Bowyer, S.M., Hubbard, C.W. et al. Environmental measurements with a Comprehensive Nuclear Test Ban Treaty radionuclide particulate monitor. J Radioanal Nucl Chem 235, 115–119 (1998). https://doi.org/10.1007/BF02385947
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DOI: https://doi.org/10.1007/BF02385947