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Simplified radio-frequency generator for driving ion guides, traps, and other capacitive loads
 

Summary: NOTES
Simplified radio-frequency generator for driving ion guides, traps,
and other capacitive loads
Ronald M. Jones and Scott L. Andersona)
Department of Chemistry, University of Utah, 315 South 1400 E., Room 2020, Salt Lake City, Utah 84112
Received 5 July 2000; accepted for publication 7 August 2000
We report the design and construction details for a very simple radio-frequency rf generator,
suitable for driving ion guides, traps, or any capacitive load in the few to few hundred picofarad
range. The design is a simple high voltage tube oscillator, and the frequency can be step adjusted by
changing capacitors. An optional TTL-triggered keying circuit is provided for applications where
the rf needs to be turned off and on under external control. 2000 American Institute of Physics.
S0034-6748 00 03511-5
A few years ago, we published the design for a high
voltage radio-frequency rf oscillator circuit designed for
ion guiding and trapping applications.1
The design has
proven to be popular in the ion community because it is
easier to use and more robust than systems based on com-
mercial rf generators. The key feature is that the load i.e.,
the ion guide or trap is directly connected to the rf genera-

  

Source: Anderson, Scott L. - Department of Chemistry, University of Utah

 

Collections: Energy Storage, Conversion and Utilization; Materials Science; Chemistry