Acquisition method of autofolding moessbauer spectra

The principles of the Moessbauer data acquisition command system is described. The emphasis is laid on describing a DAC mode function generator and its variable parameters, which allowed to vary the delay time of the start channel and to improve the qualities of the autofolding spectra. As a result, almost identical parameters of the single and autofolding spectra were obtained: for 0.25 μm thick foil the average line-width of 3 and 4 peaks of the single spectrum is 0.221 mm/s while for autofolding spectrum it is 0.221 mm/s. The nonlinearity of the spectrometer is better than 0.12%