Effects of surface damage on rf cavity operation

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dc.contributor.authorHassanein, A.
dc.contributor.authorInsepov, Z.
dc.contributor.authorNorem, J.
dc.contributor.authorMoretti, A.
dc.contributor.authorQian, Z.
dc.contributor.authorBross, A.
dc.contributor.authorSeidman, D. N.
dc.date.accessioned2017-09-27T09:44:29Z
dc.date.available2017-09-27T09:44:29Z
dc.date.issued2006
dc.description.abstractWe describe a model of damage in rf cavities and show how this damage can limit cavity operation. We first present a review of mechanisms that may or may not affect the ultimate fields that can be obtained in rf cavities, assuming that mechanical stress explains the triggers of rf breakdown events. We present a method of quantifying the surface damage caused by breakdown events in terms of the spectrum of field enhancement factors, , for asperities on the surface. We then model an equilibrium that can develop between damage and conditioning effects, and show how this equilibrium can determine cavity performance and show experimental evidence for this mechanism. We define three functions that quantify damage, and explain how the parameters that determine performance can be factored out and measured. We then show how this model can quantitatively explain the dependence of cavity performance on material, frequency, pulse length, gas, power supply, and other factors. The examples given in this paper are derived from a variety of incomplete data sets, so we outline an experimental program that should improve these predictions, provide mechanisms for comparing data from different facilities, and fill in many gaps in the existing data.ru_RU
dc.identifier.citationHassanein, A., Insepov, Z., Norem, J., Moretti, A., Qian, Z., Bross, A., ... & Seidman, D. N. (2006). Effects of surface damage on rf cavity operation. Physical Review Special Topics-Accelerators and Beams, 9(6), 062001.ru_RU
dc.identifier.uriDOI: 10.1103/PhysRevSTAB.9.062001
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/2731
dc.language.isoenru_RU
dc.publisherPhysical Review Special Topics-Accelerators and Beamsru_RU
dc.rightsOpen Access - the content is available to the general publicru_RU
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectrf cavityru_RU
dc.subjectrf breakdownru_RU
dc.subjectrfru_RU
dc.titleEffects of surface damage on rf cavity operationru_RU
dc.typeArticleru_RU

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