Search results for "Secondary electron yield"

showing 2 items of 2 documents

Study of the Secondary Electron Yield in Dielectrics Using Equivalent Circuital Models

2018

[EN] Secondary electron emission has an important role on the triggering of the multipactor effect; therefore, its study and characterization are essential in radio-frequency waveguide applications. In this paper, we propose a theoretical model, based on equivalent circuit models, to properly understand charging and discharging processes that occur in dielectric samples under electron irradiation for secondary electron emission characterization. Experimental results obtained for Pt, Si, GaS, and Teflon samples are presented to verify the accuracy of the proposed model. Good agreement between theory and experiments has been found.

010302 applied physicsMultipactor effectNuclear and High Energy PhysicsWaveguide (electromagnetism)Materials scienceDielectricCondensed Matter Physics01 natural sciencesSecondary electrons010305 fluids & plasmasCharacterization (materials science)Computational physicsSecondary electron emission (SEE)Secondary emission0103 physical sciencesRadio frequencyTEORIA DE LA SEÑAL Y COMUNICACIONESElectron beam processingEquivalent circuitMultipactor effectSecondary electron yield
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Experimental Study of the Multipactor Effect in a Partially Dielectric-Loaded Rectangular Waveguide

2019

This letter presents the experimental study of the multipactor threshold in a partially dielectric-loaded rectangular waveguide, whose results validate a multipactor model recently developed by the authors, which includes the charge distribution appearing on the dielectric surface during the multipactor discharge. First, the variation of the multipactor RF voltage threshold has been theoretically analyzed in different waveguide configurations: in an empty waveguide, and also in the cases of a one-sided and two-sided dielectric-loaded waveguides. To reach this aim, an in-house Monte Carlo simulation tool has been developed. The Secondary Electron Yield (SEY) of the metallic and dielectric ma…

Multipactor effect621.3 - Ingeniería eléctrica. Electrotecnia. TelecomunicacionesMaterials scienceMonte Carlo methodPhysics::Optics02 engineering and technologyDielectricWaveguide (optics)law.inventionOpticslaw0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringdielectricTransformerbusiness.industryRF breakdown020206 networking & telecommunicationsCondensed Matter PhysicsSecondary Electron Yield (SEY)Surface wavewaveguide transformerMultipactor effectRadio frequencyrectangular waveguidebusinessVoltageIEEE Microwave and Wireless Components Letters
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