Characterization of linear quadrupoles operated with amplitude-asymmetric sinusoidal waveforms
Alexander I Ivanov1,2, Alexey A Sysoev3, Andrew N Konenkov1
1Ryazan State University named for S.A. Yesenin, Ryazan, Russia.
Abstract:
The stability regions formed by the asymmetric sinusoidal shape of the periodic supply potential of the quadrupole mass filter are calculated, with the signal duty cycle . Two cases are considered, when and , where and are the amplitudes of the positive and negative parts of the sinusoid. Stability islands are revealed, where the QMF operation is possible by changing amplitude without DC potential. For the values and , the mass selected instability mode with a resolution of about 7000 is found. In this island, the potential well depth reaches its maximum along the Y coordinate. At the amplitudes and , stability regions are formed, the operation in which allows reaching . The results of the transmission and excitation contours modeling confirm the validity of the method for calculating the stability diagrams of a linear quadrupole with asymmetric sinusoidal waveform.
More Related Videos
Related Concept Videos
Characteristics of Simple Harmonic Motion
Mass Analyzers: Common Types
Transfer function and Bode Plots-II
Linear Approximation in Time Domain
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
Standing Waves
RLC Circuit as a Damped Oscillator
Consider a series RLC circuit. Here, the presence of resistance in the circuit leads to energy loss due to joule heating in the resistance. Therefore, the total electromagnetic energy in the circuit is no longer constant and decreases with time. Since the magnitude of charge, current, and potential difference continuously decreases, their oscillations are said to be damped. This is...


