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Interactive positronfit: A new version of a program for analysing positron lifetime spectra

✍ Scribed by C.J. Virtue; R.J. Douglas; B.T.A. McKee

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
664 KB
Volume
15
Category
Article
ISSN
0010-4655

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✦ Synopsis

Title of program: INTERACTIVE POSITRONFIT Nature of the physical problem Positrons annihilate in condensed matter from different Catalogue number: AAHI states (e.g. from defect traps in metals) so that a measured lifetime spectrum consists of a sum of exponential decay Program obtainable from: C.P.C. Program Library, Queen's components smeared with the instrumental resolution func-University of Belfast, N. Ireland (see application form in this tion and superimposed on a constant background. Experiissue) menters want to extract the lifetimes and intensities of the annihilation from different states.

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## No. of bits in a word: 36 Restrictionson the complexity of the problem Two exponentials required for the prompt, a maximum of Overlay stnWture: none three allowed in the spectrum. No independent source correction is included. ## No. of magnetic tapesrequired: none 7)'pical running time Other p