Enhancing the sensitivity of miniaturized quadrupole mass spectrometers

Author

Wilamowski, Bodgan ; Bell, David ; Legowski, Stanislaw ; Abdelkader, Yaser

Author_Institution

Graduate Center, Univ. of Idaho, Boise, ID, USA

Volume

1

fYear

2001

fDate

2001

Firstpage

147

Abstract

A novel two stage mass filter where the first stage operates in DC/RF mode and second in RF only mode is proposed. This design can be characterized by very high mass resolution and may not require high precision mechanical and electronic design. An ion detector by integrating a VLSI chip with a Faraday cup is described. Extremely low biasing currents, differential and narrow frequency band operation resulted in significant improvement of the signal to noise ratio

Keywords

Faraday effect; VLSI; counters; mass spectrometer accessories; mass spectrometers; DC/RF mode operation; Faraday cup; RF mode operation; VLSI chip; differential frequency band operation; high mass resolution; ion detector; low biasing currents; narrow frequency band operation; sensitivity enhancement; signal to noise ratio improvement; two stage mass filter; Detectors; Educational institutions; Equations; Filters; Mass spectroscopy; Radio frequency; Signal resolution; Signal to noise ratio; Very large scale integration; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-7108-9

Type

conf

DOI

10.1109/IECON.2001.976470

Filename

976470