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surface:leis [2013-12-17 11:53]
Michael Schmid radius of closest approach added
surface:leis [2013-12-17 16:08] (current)
Michael Schmid calculates closest approach; better accuracy at 180°
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• Due to inelastic processes, actual peak energies in LEIS are lower than the values calculated. The energies calculated roughly correspond to the high-energy "foot" of the peak.\\ • Due to inelastic processes, actual peak energies in LEIS are lower than the values calculated. The energies calculated roughly correspond to the high-energy "foot" of the peak.\\
• For non-relativistic particles only.\\ • For non-relativistic particles only.\\
-• Impact parameter and cross section use the "Magic Formula" by Ziegler, Biersack and Littmark. These results may be inaccurate for low values of the scattering angle (//ϑ//<sub>CMS</sub> < 0.5°).+• Impact parameter and cross section use the "Magic Formula" by Ziegler, Biersack and Littmark. These results may be inaccurate for low values of the scattering angle (//ϑ//<sub>CMS</sub> < 0.5°). Cross sections at ϑ > 179° might be also less accurate due to numerical errors.
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-Copyright (C) by Michael Schmid, [[:|IAP]]/<html><a href="http://www.tuwien.ac.at/">TU Wien</a></html> [[:surface:|Surface Physics Group]]  2002-2011.+Copyright (C) by Michael Schmid, [[:|IAP]]/<html><a href="http://www.tuwien.ac.at/">TU Wien</a></html> [[:surface:|Surface Physics Group]]  2002-2013.
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surface/leis.txt · Last modified: 2013-12-17 16:08 by Michael Schmid