Spatial harmonics of the field in a quadrupole mass filter with circular electrodes |
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| Authors: | D J Douglas T A Glebova N V Konenkov M Yu Sudakov |
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| Institution: | (1) University of British Columbia, 2036 Main Mall, Vancouver, B. C. V6T 1Z1, Canada;(2) S. A. Esenin Ryazan State Pedagogical University, 390000 Ryazan, Russia |
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| Abstract: | The amplitudes of the spatial harmonics of the field are calculated for given displacements of the electrodes in a quadrupole
mass filter relative to their optimum positions. The cases of radial and angular displacements of the electrodes, asymmetries
in voltage supplied to the electrodes, and nonidentical rod diameters are considered. These data are required for calculating
the actual shape of the mass peaks and will be useful in designing mass filters.
Zh. Tekh. Fiz. 69, 96–101 (October 1999) |
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