Source term estimation using noble gas and aerosol samples.

J Environ Radioact

Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA, 99354, USA. Electronic address:

Published: December 2024

Algorithms that estimate the location, time, and magnitude of a point-source atmospheric release using remotely sampled air concentrations typically use data for a single chemical or radioactive isotope. A Bayesian algorithm is presented that uses data from multiple radioactive isotopes that are all released in the same short-duration event. Data from noble gas and aerosol samplers can be used simultaneously in the model. Application to a large synthetic data set using four isotopes shows the new algorithm generally gives more accurate location and time estimates than a comparable model using a single isotope.

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http://dx.doi.org/10.1016/j.jenvrad.2024.107544DOI Listing

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