Theoretical study of the effect of ion trap geometry on the dynamic behavior of ions in a Paul trap

Autor: S. Farhangi, S. M. Sadat Kiai, M. Ellahi, S. Sheibani, I. Ziaeian, A. Safarian
Rok vydání: 2011
Předmět:
Zdroj: International Journal of Mass Spectrometry. 304:25-28
ISSN: 1387-3806
DOI: 10.1016/j.ijms.2011.03.004
Popis: The influence of the ion trap geometrical shape, ring and end-cap electrodes, on the dynamical behavior of the confined ions is studied. At first by considering the geometrical parameter z 0 = ( 1 / n ) r 0 , where n is a real number, in the quadrupole potential, we solve Mathieu's differential equation for the first stability region using the six-order Runge–Kutta method. The numerical results show that, for a given ion trap mode i.e., rf only mode, the electrode geometry plays an important role both in higher ion mass confinement range and in a higher fractional mass resolution m/Δm.
Databáze: OpenAIRE