Varian Associates

About: Varian Associates is a based out in . It is known for research contribution in the topics: Beam (structure) & Amplifier. The organization has 2160 authors who have published 2591 publications receiving 46002 citations.

Apparatus for enhanced neutralization of positively charged ion beam

Abstract: An apparatus for the enhanced neutralization of a positively charged particle beam has a source of primary electrons which are directed at a dummy target positioned adjacent the ion beam. The secondary electrons have a low energy and are susceptible to being entrapped within the volume of the positively charged beam. The ion beam attracts these low energy electrons until effective beam neutralization is achieved. The ions in the beam are individually neutralized when the beam strikes the target.

Effective use of dispersion shaping in broadband helix TWT circuits

Abstract: This paper presents the measured performance characteristics of four broadband TWTs which used various amounts and methods of circuit loading in order to control the helix dispersion. The tubes used identical guns, collectors, and focusing structures, so direct comparisons of the circuit performances could be made. The most heavily loaded circuit, with anomalous dispersion over a large part of the frequency range, performed well over more than two octaves, compared with one octave for a conventional unloaded circuit. The various circuits are described and some factors influencing the choice of a "best" circuit are presented.

Pressure sealed waveguide to coaxial line connection

Abstract: A pressure sealed waveguide to coaxial line connection formed with a low cost, non-pressurizable waveguide to coaxial line adapter, an elastomeric sealing boot, and a specially configured mounting seat on a housing which contains a pressurizable waveguide cavity. The connection provides a low cost alternative to hermetically sealed waveguide to coaxial line adapters.