TY  - JOUR
AU  - Ibach, H.
AU  - Rajeswari, J.
TI  - Electron energy loss spectrometers: An advanced operation mode for the lens system and the quantitative calculation of solid angle and transmission
JO  - Journal of electron spectroscopy and related phenomena
VL  - 185
IS  - 3-4
SN  - 0368-2048
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - PreJuSER-22162
SP  - 61–70
PY  - 2012
N1  - One of the authors (J.R.) gratefully acknowledges the financial support from NRW Research School "Forschung mit Synchrotron-strahlung in den Nano- und Biowissenschaften".
AB  - A new operation mode of the lens system in electron energy loss spectrometers is proposed which brings the cardinal plane of the lenses closer to the sample. Experiments as well as electron optical calculations show an intensity gain by a factor of 3-4. The required voltages on the lens elements are calculated as function of the impact energy at the sample. Furthermore, the lens system is characterized with respect to the solid angle probed by the spectrometer and the transmission which enables the evaluation of spectral intensities in terms of the absolute scattering probability for elastic and inelastic scattering. The results apply to most existing electron energy loss spectrometers as they stem from the same design and use identical lens systems. (C) 2012 Elsevier B.V. All rights reserved.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000304640700003
DO  - DOI:10.1016/j.elspec.2012.01.001
UR  - https://juser.fz-juelich.de/record/22162
ER  -