Comments on a Numerical Method Allowing an Improved Analysis of Multiexponential Decay Curves

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Abstract
Several methods have been proposed in order to perform an analysis of mu1ticomponent exponential decay curves. Most of them tend to determine a combination of 6 Dirac distributions, which are difficult to be got from a computer. Instead of this set of Dirac distributions, an already proposed method allowed to obtain their integral, which is a sum of Heaviside step-like functions, each step of which providing simultaneously the amplitude and relaxation time of the corresponding exponential component. A comparison of the two types of methods makes appear some improvements of accuracy for results obtained with Heaviside’s steps. Theoretical reasons are given for them.