Actions for Tomographic Analysis of SRF Cavities as Asymmetric Plasma Reactors [electronic resource].

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Tomographic Analysis of SRF Cavities as Asymmetric Plasma Reactors [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Science, 2010.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators
Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The tomographic reconstruction of local plasma parameters for nonequilibrium plasma sources is a developing approach, which has a great potential in understanding the fundamental processes and phenomena during plasma processing of SRF cavity walls. Any type of SRF cavity presents a plasma rector with limited or distorted symmetry and possible presence of high gradients. Development of the tomographic method for SRF plasma analysis consists of several steps. First, we define the method based on the inversion of the Abel integral equation for a hollow spherical reactor. Second step is application of the method for the actual elliptical cavity shape. Third step consists of study of the effects of various shapes of the driven electrode. Final step consists of testing the observed line-integrated optical emission data. We will show the typical results in each step and the final result will be presented in the form of correlation between local plasma parameter distributions and local etching characteristics.
Report Numbers
E 1.99:jlab-acc-11-1358
E 1.99: doe/or/23177-1601
doe/or/23177-1601
jlab-acc-11-1358
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Note
Published through SciTech Connect.
05/01/2010.
"jlab-acc-11-1358"
" doe/or/23177-1601"
IPAC'10, 23-28 May 2010, Kyoto, Japan.
M. Nikolić, A.L. Godunov, S. Popović, A.
Funding Information
AC05-06OR23177
View MARC record | catkey: 14738157