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Interfacing AEI/Kratos electron spectrometers to a microcomputer for data acquisition and processing
Author(s) -
Evans Stephen,
Elliott David A.
Publication year - 1982
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740040610
Subject(s) - analyser , interfacing , microcomputer , spectrometer , data acquisition , computer science , data processing , spectral line , electron spectrometer , flexibility (engineering) , computer hardware , electron , physics , optics , nuclear physics , telecommunications , mathematics , chip , statistics , astronomy , operating system , cathode ray
Interfacing of a Research Machines Ltd. 380Z microcomputer to an AEI/Kratos ES200 electron spectrometer and Inotech multichannel analyser (MCA) is described. Comprehensive data acquisition and processing facilities are thereby provided. The microcomputer controls the MCA, the ES200 sweep ramp and the ES200 analyser kinetic energy (KE) above which the sweep is applied. The operating and processing program has been developed predominantly in BASIC, permitting the retention of more flexibility than is usual with ‘packaged’ computer systems. Facilities are provided for rapid quantitative elemental analysis by XPS following the automatic execution of repetitive sweeps over a sequence of up to 10 KE regions. Peak maximum KEs and widths are also computed, and X‐ray satellite contributions can be subtracted from the spectra. In addition, integral spectra, 5–25 point smoothed spectra and their first and second derivatives can be generated.