A pulse generator for feeding mass spectrometers

A pulse generator for feeding mass spectrometers

A small-size high-frequency rectangular alternating-voltage pulse generator is designed for energizing a cylindrical electrode of a monopole mass spectrometer. Amplitudes of positive and negative pulses linearly increase from zero to +150 V/−180 V for ∼10 min and the frequency simultaneously linearl...

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Veröffentlicht in:Instruments and experimental techniques (New York) 2013-09, Vol.56 (5), p.546-550
Hauptverfasser: Cherepin, V. T., Vasilenko, V. I., Krasovskii, T. A.
Format: Artikel
Sprache:eng
Schlagworte:
Electrical Engineering
Electronics and Radio Engineering
Measurement Science and Instrumentation
Physical Chemistry
Physics
Physics and Astronomy
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Beschreibung
Zusammenfassung:A small-size high-frequency rectangular alternating-voltage pulse generator is designed for energizing a cylindrical electrode of a monopole mass spectrometer. Amplitudes of positive and negative pulses linearly increase from zero to +150 V/−180 V for ∼10 min and the frequency simultaneously linearly decreases from 2.0 to 1.4 MHz. A negative-polarity direct component, which is required for operation of the mass spectrometer, is formed due to unequal positive and negative amplitudes with respect to the ground. Spectra of residual gases with atomic mass numbers of 1–130 amu are obtained.
ISSN:0020-4412
1608-3180
DOI:10.1134/S0020441213050023