Jiayu Xue. A fitting method of multiple-exponential function model in the analysis of positron annihilation lifetime spectrum[J]. Nuclear techniques, 1983, 06(6): 17-21,71,72.
Jiayu Xue. A fitting method of multiple-exponential function model in the analysis of positron annihilation lifetime spectrum[J]. Nuclear techniques, 1983, 06(6): 17-21,71,72.DOI:
the usability of multiple-exponential function model in fitting the positron annihilation lifetime spectrum is demonstrated. In preparation for the on-line analysis of positron annihilation lifetime measurement
we composed a versatile computer program (EXPFIT) which can be run on the micro-computer (PDP11/04) . It has been preliminarily verified being efficient and convenient in practice. In the program
three kinds of nonlinear least-squares fitting methods were supplied for processing the complex positron lifetime spectrum.
Meanwhile
some discussions
such as errors of the fitting procedure and how to choose the estimate values of parameters and the starting point of fitting etc.
are also concerned.
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references
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