G. Lasche, R. Coldwell, J. Nobel, A. C. Rester, J. Trombka
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Spectral analysis in high radiation space backgrounds with robust fitting
An advanced derivative of ROBFIT spectral analysis software is tested for its ability to fit spectra from space. The approach, which emphasizes the background shape function, is uniquely suited to the identification of weak-strength nuclides in high-radiation environments, and for analyses in which a suitable off-source background spectrum may not be available. Compared to earlier analysis using on-source/off-source subtraction, all data from SN 1987A were combined and reanalyzed with significant improvement in results.
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