3 GHz Single Cell Cavity Optimization Design

L. Garolfi 1, 2 M. El Khaldi 2, 1
1 Dept. Accelerateurs
LAL - Laboratoire de l'Accélérateur Linéaire
Abstract : In order to develop a high gradient S-band accelerating structure, an optimized travelling wave (TW) single-cell cavity operating at the frequency of 2998.55 MHz at 30 C with 2pi/3 phase advance, is proposed. Starting from the well-known accelerating cells design developed by LAL and SLAC for linear accelerators; it is possible to improve the main RF parameters, such as quality factor, shunt impedance and group velocity, by choosing a suitable shape of the inner surface. Despite the surface electric field being considered as the only main quantity limiting the accelerating gradient; the importance of power flow has resulted from high-gradient experimental data. In this context, the modified Poynting vector quantity can be considered as a new RF breakdown constraint depending on an iris shape. RF simulations have been carried out with HFSS and CST MWS. Simulations results have shown an optimal RF characteristics.
Type de document :
Communication dans un congrès
6th International Particle Accelerator Conference - IPAC'15, May 2015, Richmond, United States
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http://hal.in2p3.fr/in2p3-01151263
Contributeur : Sabine Starita <>
Soumis le : mardi 12 mai 2015 - 16:15:52
Dernière modification le : jeudi 11 janvier 2018 - 06:26:19

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  • HAL Id : in2p3-01151263, version 1

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L. Garolfi, M. El Khaldi. 3 GHz Single Cell Cavity Optimization Design. 6th International Particle Accelerator Conference - IPAC'15, May 2015, Richmond, United States. 〈in2p3-01151263〉

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