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Dresden 2013 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 36: Beschleunigerphysik IX (Diverses)

HK 36.9: Vortrag

Dienstag, 5. März 2013, 16:00–16:15, WIL-C203

Practice-oriented Examples for Eigenmode Computation Using Perturbative Methods — •Korinna Brackebusch and Ursula van Rienen — University of Rostock, Rostock, Germany

Parametric studies of geometric variations are an essential part of the performance optimization and error estimation in the design of accelerator cavities. Using common eigenmode solvers the analysis of intentional and undesired geometric perturbations tend to be very extensive since any geometric variation involves an entire eigenmode recomputation. Perturbative methods constitute an efficient alternative for the computation of a multitude of moderately varying geometries. Their practicability was proven by means of simple cavity geometries.

In this paper we investigate the applicability and efficiency for practice-oriented cavity structures. For this, basic geometric parameters of the cavity are varied and the respective eigenmodes are computed by using perturbative as well as common methods. The accuracy of the results and the computational effort of the different methods are compared.

Work supported by Federal Ministry for Research and Education BMBF under contracts 05H09HR5 and 05K10HRC.

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