UDC 543.084.085: 541.12.084.085
INFLUENCE OF CONDITIONS FOR INPUTTING CHARGED PARTICLES ON TRIPOLE MASS ANALYZER ANALYTICAL CHARACTERISTICS
M. V. Dubkov, Dr. Sc. (Tech.), full professor, Head of the Department, RSREU, Ryazan, Russia;
orcid.org/0000-0002-5791-0991, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
M. A. Burobin, Ph.D. (Tech.), associate professor, RSREU, Ryazan, Russia;
orcid.org/0000-0003-4465-6362, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
K. A. Vetshev, post-graduate student, RSREU, Ryazan, Russia;
orcid.org/0009-0000-7789-7520, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
A. D. Vetsheva, post-graduate student, RSREU, Ryazan, Russia;
orcid.org/0009-0004-0215-908x, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
The influence of input aperture shift and shape on the analytical characteristics of a tripole mass analyzer is studied. The influence of input aperture shift relative to analyzer axis on its analytical characteristics is investigated by numerical modeling of tripole mass analyzer operation. It is shown that the permissible shift of water aperture from corner electrode, which does not lead to a significant deterioration in analytical characteristics, is 0.05 of distance from analyzer axis to hyperbolic electrode. The influence of various configurations (oval, cross-shaped, T-shaped) of input aperture on analyzer analytical characteristics is also studied. It is shown that tripole mass analyzer with input aperture in the form of oval hole elongated along OX axis, i.e. between hyperbolic electrodes, has the highest quality factor. The aim of this work is to study the influence of offset and shape of input aperture on the analytical characteristics of tripole mass analyzer.
Key words: : : tripole mass analyzer, inlet aperture, mass peak, resolution, mass peak intensity.