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Computer modelling of fragmentation processes in radio frequency multipole collision cells
Author(s) -
Davis Stephen C.,
Wright Barry
Publication year - 1990
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/rcm.1290040605
Subject(s) - multipole expansion , fragmentation (computing) , collision , chemistry , computational physics , ion , radio frequency , collision frequency , field (mathematics) , physics , quantum mechanics , telecommunications , computer science , computer security , mathematics , organic chemistry , pure mathematics , operating system
To date, methods for calculating the trajectories of ions in radio frequency (RF) multipole fields have involved solving, analytically or numerically, the appropriate equations of motion. Another method is presented here whereby a non‐ideal distribution of field may be modelled and the position of an ion can be tracked, as it traverses the multipole. The validity of the calculations is discussed and some of the properties of collision cells are explained. Fragmentation processes within the cell are modelled showing that the focusing properties within the cell have a striking effect on parent‐ and daughter‐ion transmission.