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| TUXXPLS3 |
The Design Optimization of the Dielectric Assist Accelerating Structure for Better Heat and Gas Transfer |
1179 |
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- S. Mori, M. Yoshida
KEK, Ibaraki, Japan
- D. Sato
AIST, Tsukuba, Ibaraki, Japan
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The dielectric-assist accelerating (DAA) structure is a dielectric-inserted normal-conducting cavity, which provides high Q value at room temperature. This accelerating structure is composed of dielectric disks and a dielectric cylindrical layer inserted in a copper cavity. For the realistic operation, the removal of heat from the dielectric cells and the vacuum evacuation of gas inside the cylindrical layers have not considered yet. In order to solve the problems, we propose the optimized design of the DAA structure, where the extended part of the dielectric disk is embedded in the copper cavity and the choke structure is applied. We show the result of the electromagnetic-field simulation of the extended DAA structure and the thermal simulation to clarify the relation between a duty factor and maximum temperature of the dielectric cells.
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Slides TUXXPLS3 [5.892 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2019-TUXXPLS3
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| About • |
paper received ※ 30 April 2019 paper accepted ※ 22 May 2019 issue date ※ 21 June 2019 |
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