Eur. Phys. J. Appl. Phys. 25, 191-201 (2004)
https://doi.org/10.1051/epjap:2004005

Analysis of positron lifetime spectra via a fast Prony algorithm

Institute of Applied Physics, National Academy of Sciences of the Ukraine, Petropavlovskaya St. 58, 40030 Sumy, Ukraine

Corresponding author: kulmentev@ipfcentr.sumy.ua

Received: 19 July 2002
Revised: 19 August 2003
Accepted: 10 October 2003
Published online: 21 January 2004

Abstract

A new fast method is used to analyze positron annihilation lifetime spectra. The regularization procedure to solve the inverse problem of finding parameters of useful signals present in the data is formulated. A new approach to determine the number of components in a spectrum is proposed. Results on simulated spectra demonstrate the high resolution capability of the method.