1. Study of quadrupole mass filter supplied with a new impulsional potential
- Author
-
Zanariah Abdul Majid, Seyyed Mahmod Sadat Kiai, Ismail Fudziah, and Sarkhosh Seddighi Chaharborj
- Subjects
Hydrogen ,Analytical chemistry ,chemistry.chemical_element ,General Medicine ,Function (mathematics) ,Stability (probability) ,Atomic and Molecular Physics, and Optics ,Ion ,chemistry ,Phase space ,Radio frequency ,Atomic physics ,Quadrupole mass analyzer ,Spectroscopy ,Voltage - Abstract
The paper reports on some theoretical studies concerning the impulsional mode of a quadrupole mass filter (QMF) supplied with a new periodic impulsional radio frequency voltage of the form Vaccos(ω t)⌊1 + kcos(⅓ω t)⌋/1 – √ kcos(2ω t) with 0 ≤ k < 1 (⌊.⌋ means floor function) and eventually compares it to the classical sinusoidal case, k = 0. The physical properties of the confined ions in the r and z directions are illustrated and the fractional mass resolutions m/Δ m of the confined ions in the first stability regions of both potential were analyzed for hydrogen isotopes and presented.
- Published
- 2012