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Three‐dimensional kinetic energy distributions of ions using a retarding potential analyser. Analysis of discrimination effects by ion trajectory simulations
Author(s) -
Hoxha Antuan,
Leyh Bernard,
Locht Robert
Publication year - 1999
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(19990228)13:4<275::aid-rcm470>3.0.co;2-h
Subject(s) - kinetic energy , chemistry , analyser , ion , potential energy , trajectory , atomic physics , energy (signal processing) , distribution function , computational physics , thermodynamics , classical mechanics , physics , chromatography , organic chemistry , astronomy , quantum mechanics
This paper presents a method of extracting three‐dimensional kinetic energy distributions from retarding potential curves, suitable for analysing low kinetic energy releases. Trajectory calculations were performed which led to an analytical function correcting for the influence of discrimination against ions with velocity components perpendicular to the retarding field direction. The analysis of the thermal kinetic energy distribution of molecular vinyl bromide ions confirms the computed correcting factor. Copyright © 1999 John Wiley & Sons, Ltd.