Spatial separation of fringe fields in quadrupole mass filters
- 1 March 1976
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 47 (3) , 326-330
- https://doi.org/10.1063/1.1134616
Abstract
The use of leaky dielectric materials which appear to radio‐frequency fields as dielectrics but to dc fields as conductors is described in connection with achieving a delayed‐dc‐ramp effect in quadrupole mass filters. The criteria for the conductivity and dielectric constant of the materials are derived theoretically. Some theoretical considerations with regard to application to practical mass filters are also presented. Apparent experimental verification of the theory is briefly described and practical problems of available materials are discussed.Keywords
This publication has 1 reference indexed in Scilit:
- Transmission–resolution curves for a quadrupole mass spectrometer with separated rf and dc fields in the entrance apertureReview of Scientific Instruments, 1976