Transmission for quadrupole mass filter with dipolar excitation
T15N2
K.E. Seregin , N.V. Konenkov , A.S. Berdnikov
Using the numerical simulation of the ion trajectories in the linear quadrupole with the dipole excitation(s) the mass peaks are calculated. Using this data the diagrams for transmission versus resolution are calculated both for the ideal quadrupole field and for the quadrupole field with round rods. It is shown that using the dipole excitation mode the resolution may be increased from R0.1 = 1000 to R0.1 = 2200 with 20% QMF transmission in ideal case, and for the round rods the dipole excitation along iso-line βy = 0.01 enables to increase the resolution R0.1 from 500 to 800 at 20% level transmission.
