IAEA γ-ray spectra for testing of spectrum analysis software

Test spectra for γ-ray spectrum analysis software intercomparison purposes were created. The spectrum of 226Ra with progeny was used for this purpose. Peak areas and positions in the test spectra were determined from a spectrum measured under the same conditions but with a much longer counting time. Doublets with varying but known separation and peak area ratios were generated by adding spectra with selected counting times after shifting one of them by a small integer number of channels. A set of seven test spectra and a calibration spectrum are now available for intercomparison purposes.