SDAT implementation for the analysis of radioxenon β-γ coincidence spectra

The standard deconvolution analysis tool (SDAT) was developed for analysis of radioxenon β-γ coincidence spectra measured as part of the international monitoring system as defined in the comprehensive nuclear-test-ban treaty. The SDAT software analyzes each β-γ coincidence spectrum by fitting library vectors of each radionuclide of interest: 131mXe, 133mXe, 133Xe, and 135Xe. Detector background and radon are incorporated as optional components of the sample solution. Results are reported in mBq m-3. A new graphical user interface has been developed to facilitate ease of use and improve the data visualization. Automated energy versus channel calibration algorithms were developed and implemented based on 137Cs β-γ coincidence spectra. Details on the user tool and testing are included. (author)