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Determining the angular admittance of a cylindrical mirror analyser
Author(s) -
Watts B.,
Thomsen L.,
Dastoor P. C.
Publication year - 2002
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.1410
Subject(s) - analyser , aperture (computer memory) , function (biology) , optics , admittance , physics , acoustics , quantum mechanics , electrical impedance , evolutionary biology , biology
Recent studies have demonstrated the need for the angular acceptance of a cylindrical mirror analyser (CMA) to be determined quantitatively. This acceptance probability function, with respect to the electron ejection angle, has not been reported previously. In this paper the angular acceptance function of a PHI‐550 double‐pass CMA has been determined quantitatively. A knowledge of this function makes it possible to extract some limited depth‐sensitive information from a standard CMA instrument without using a rotating aperture. Copyright © 2002 John Wiley & Sons, Ltd.