Publication

Gyrotron parasitic-effects studies using the time-dependent self-consistent monomode code TWANG

2011
Conference Papers

Abstract

Parasitic effects have recently appeared to be a potential limiting factor for reliable operation of high-power high-frequency gyrotrons. Within the domain of validity of a self-consistent monomode model, the time-dependent code TWANG has been developed with one of the aims devoted to the study of such parasitic instabilities. In a preliminary phase, the modeling of non-stationary behavior in frequency tunable gyrotrons for DNP-NMR applications have been simulated. Spurious effects such as After Cavity Interaction (ACI) in agreement with experimental observations are demonstrated and preliminary studies on parasitic oscillations in gyrotron beam-ducts have been initiated. © 2011 IEEE.

Official source

https://infoscience.epfl.ch/entities/publication/c804b0fa-cc0e-4bc0-8c5d-ba56c2e2f43e

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2011
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c804b0fa-cc0e-4bc0-8c5d-ba56c2e2f43e

About this result

Related concepts (23)

Parasitic capacitance

Parasitic capacitance is an unavoidable and usually unwanted capacitance that exists between the parts of an electronic component or circuit simply because of their proximity to each other. When two electrical conductors at different voltages are close together, the electric field between them causes electric charge to be stored on them; this effect is capacitance. All practical circuit elements such as inductors, diodes, and transistors have internal capacitance, which can cause their behavior to depart from that of ideal circuit elements.

Vacuum tube

A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions such as signal amplification and current rectification.

Electronic oscillator

An electronic oscillator is an electronic circuit that produces a periodic, oscillating or alternating current (AC) signal, usually a sine wave, square wave or a triangle wave, powered by a direct current (DC) source. Oscillators are found in many electronic devices, such as radio receivers, television sets, radio and television broadcast transmitters, computers, computer peripherals, cellphones, radar, and many other devices.