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Manuscript Title: POSITRONFIT EXTENDED: a new version of a program for analysing positron lifetime spectra.
Authors: P. Kirkegaard, M. Eldrup
Program title: POSITRONFIT EXTENDED
Catalogue identifier: AAGX_v1_0 Distribution format: gz
Journal reference: Comput. Phys. Commun. 7(1974)401
Programming language: Fortran.
Computer: B 6700.
Operating system: B6700 MCP MARK.II.6.
RAM: 21K words
Word size: 48
Keywords: Sum-of-exponentials, Iterations, Marquardt, Constraints, Experiment, Covariance matrix, Minimization, Lifetime, Least squares, Atomic physics, Positron, Solid state physics, Fitting, Source correction, Convolution.
Classification: 2.3, 7.4.
Other versions:
Cat Id	Title	Reference
AAGK_v1_0	POSITRONFIT	CPC 3(1972)240
AAGZ_v1_0	DBLCON	CPC 13(1977)371
AAHI_v1_0	INTERACTIVE POSITRONFIT	CPC 15(1978)97
AANN_v1_0	PATFIT	CPC 23(1981)307
ACKX_v1_0	PFPOSFIT	CPC 30(1983)359
Revision history:
Type	Tit le	Reference
correction	000ACORRECTION 30/11/78	See below
Nature of problem: Analysis of positron lifetime spectra, cf description of the original version of POSITRONFIT.
Solution method: Least-squares technique.
Restrictions: Maximal seven gaussian components in the resolution curve. Other restrictions as in Comp. Phys. Commun. 3(1972)240.
Running time: The analysis of a single, typical lifetime spectrum takes about 85 s on the B 6700 (or about 12 s on the IBM 370/165).

CORRECTION SUMMARY
Manuscript Title: Unpublished correction to POSITRONFIT EXTENDED: a new version of a program for analysing postitron lifetime spectra.
Authors: P. Kirkegaard, M. Eldrup
Program title: 000ACORRECTION 30/11/78
Catalogue identifier: AAGX_v1_0 Distribution format: gz

Classification: 2.3, 7.4.