Abstract
Recently developed personal-computer (PC) software performs analysis of alpha-particle spectra. The spectra are collected using a commercially available multichannel analyzer board in the PC, interfaced with up to eight alpha-particle detectors. The PC is an IBM PC-AT computer with a 20 Mbyte Bernoulli-Box removable cartridge disk, a math coprocessor and a printer. Once saved on disk, the spectra are analyzed using the software described here. The PC analysis software performs automatic peak-area determination with operator override. Sample analysis can use measured detector efficiencies or chemical yields obtained from a radionuclide spike or both. Background contribution corrections for all peaks are included. Upper limit values are calculated for nuclides specified by the operator and not found in the sample. Nuclide identification uses a master table of up to 64 nuclides with up to 8 alpha lines for each nuclide. Any one of 32 available subtables can be selected for use in an analysis. Analysis time is short and is limited by interaction with the operator, not by calculation time. Both detailed and summary versions of final results are printed for ease of data reporting. Utilities included with the software provide nuclide table editing, subset table editing, energy calibration, efficiency calibration and background analysis with background correction file update.
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