COMPUTER PROGRAMME FOR THE EVALUATION OF ION BEAM ANALYSIS ENERGY SPECTRA
The computer program "SQUEAKIE" for evaluation of ion beam analysis (RBS or nuclear reaction) energy spectra is listed and described. Given an experimental energy spectrum in which the signals from all target elements may be identified, this program directly yields the target stoichiometry versus depth from the surface. The program is based on solving an eigenvector problem by means of inverse iteration. The formalism, which has been derived in detail previously, is briefly reviewed. Attempts to reduce computing time on small computers are discussed. On a large computer (Amdahl 470) typical CPU times were +- 3 seconds per spectrum, on a smaller computer (NORD-100) +- 40 seconds.
Bibliographic Reference: WRITE TO MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, 8046 GARCHING BEI MUENCHEN (GERMANY), MENTIONING REPORT IPP 9/42, 1983
Record Number: 1989122046100 / Last updated on: 1987-01-01
Available languages: en