Darmstadt 2016 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 4: RF, Resonators and Applications II

AKBP 4.5: Vortrag

Montag, 14. März 2016, 17:30–17:45, S1/05 24

Studies of HOMs in Chains of SRF Cavities using State-Space Concatenation Scheme — •Tomasz Galek, Johann Heller, Thomas Flisgen, Korinna Brackebusch, and Ursula van Rienen — Institut für Allgemeine Elektrotechnik, Universität Rostock

The design of modern superconducting radio frequency cavities for acceleration of charged particle bunches requires intensive numerical simulations, as they typically arise as modules of several multi-cell cavities. A wide variety of parameters vital to the proper operation of accelerating cavities must be optimized and studied. One of the most important issues concerning the SRF cavities is the influence of the higher order modes on the beam quality, in this contribution. For TESLA-like structures with 1.3 GHz accelerating mode, higher order modes are calculated up to 4 GHz, the external quality factor and the shunt/geometrical impedance spectra are analyzed. To compute properties of complete RF modules the state-space concatenation scheme is used. The aspects of the concatenation scheme and its application to the bERLinPro’s chain of cavities is discussed. Work supported by Federal Ministry for Research and Education BMBF under contracts 05K13HR1 and 05H15HRRBA.

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