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https://doi.org/10.18429/JACoW-LINAC2016-TUPLR010
Title Measurements and Analysis of Cavity Microphonics and Frequency Control in the Cornell ERL Main Linac Prototype Cryomodule
Authors
  • M. Ge, N. Banerjee, J. Dobbins, R.G. Eichhorn, F. Furutapresenter, G.H. Hoffstaetter, M. Liepe, P. Quigley, J. Sears, V. Veshcherevich
    Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
Abstract The Cornell Main Linac cryomodule (MLC) is a key component in the CBETA project. The SRF cavities with high loaded-Q in the MLC are very sensitive to microphonics from mechanical vibrations. Poor frequency stability of the cavities would dramatically increase the input RF power required to maintain stable accelerating fields in the SRF cavities. In this paper, we present detailed results from microphonics measurement for the cavities in the MLC, discuss dominant vibration sources, and show vibration damping results. The current microphonics level meets the CBETA requirement of a 36MeV energy gain without applying fast tuner compensation.
Paper download TUPLR010.PDF [1.903 MB / 4 pages]
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Conference LINAC2016, East Lansing, MI, USA
Series Linear Accelerator Conference (28th)
Proceedings Link to full LINAC2016 Proccedings
Session Poster Session
Date 27-Sep-16   16:00–17:00
Main Classification 1 Electron Accelerators and Applications
Sub Classification 1B Energy Recovery Linacs
Keywords cavity, linac, cryomodule, vacuum, LLRF
Publisher JACoW, Geneva, Switzerland
Editors Yoshishige Yamazaki (FRIB/MSU, East Lansing, MI, USA); Alberto Facco (FRIB/MSU, East Lansing, MI, USA); Amy McCausey (FRIB/MSU, East Lansing, MI, USA); Volker RW Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-169-4
Published May 2017
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