Dresden 2014 – scientific programme

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BE: Beschleunigerphysik

BE 13: Beam Dynamics and Fields II

BE 13.3: Talk

Thursday, April 3, 2014, 10:00–10:15, ZEU 255

Parameter Studies and Geometry Optimization on Superconducting Multicell RF-Cavity-Resonators* — •Benjamin Isbarn, Bernard Riemann, and Thomas Weis — Center for Synchrotron Radiation (DELTA) TU Dortmund University, 44227 Dortmund, Germany

Modern accelerator concepts for high intensity electron beams often require superconducting multicell RF-cavity-resonators in circular accelerators (e.g. storage rings). Various numerical studies were performed to numerically calculate the dependence of different figures of merit with respect to the geometry parameters of the RF-structure. To ease the numerical effort an optimization routine has been developed which automatically optimizes the geometry based on goal functions. In this context it turned out that cell geometries defined by spline functions have advantages compared to the standard elliptical parametrization regularly used. The number of free parameters is substantially reduced which facilitates the search for optimum solutions.

* Work partly supported by the BMBF under contract No. 05K13PEB.