Comparison of maximum entropy and FFTs of μSR data

The asymmetry signal of a μSR time histogram is theoretically the Fourier transform of the local field distribution P ( b ), for samples with static local fields. Commonly, P ( b ) is extracted from the time histograms by either a fast Fourier transform (FFT) or maximum entropy (ME). In this paper, we discuss how ME suppresses noise, and directly compare ME line shapes with FFTs.