Karlsruhe 2011 – scientific programme
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T: Fachverband Teilchenphysik
T 83: RF / Instabilitäten
T 83.2: Talk
Tuesday, March 29, 2011, 17:00–17:15, 30.22: 020
The Choice of Frequency and Geometrical Beta in High Power Proton Linacs in the Context of Higher Order Modes — •Marcel Schuh1,2, Frank Gerigk1, and Carsten P. Welsch3,4 — 1CERN, Geneve, Switzerland — 2MPI-K, Heidelberg, Germany — 3University of Liverpool, Liverpool, United Kingdom — 4Cockcroft Institute, Warrington, United Kingdom
Several high power superconducting (SC) proton linear accelerators are currently in the design stage around the world, such as for example the European Spallation Source (ESS) in Lund, Project X at Fermilab, the European ADS demonstrator MYRRAH in Mol and the Superconducting Proton linac (SPL) at CERN.
In this contribution, the influence of Higher Order Modes (HOMs) in elliptical SC cavities is discussed as a function of the operation frequency, the number of cells and the geometrical beta of the cavity. Based on this analysis, recommendations are given for the overall linac design. Furthermore, it will be discussed whether International Linear Collider (ILC) structures might be used for high power proton linacs.