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Electron cloud cyclotron resonances in the presence of a short-bunch-length relativistic beam

Celata, C. M. and Furman, Miguel A. and Vay, J. L. and Yu, Jennifer W. (2008) Electron cloud cyclotron resonances in the presence of a short-bunch-length relativistic beam. Physical review special topics. Accelerators and beams, 11 (9). 091002. ISSN 1098-4402. http://resolver.caltech.edu/CaltechAUTHORS:CELprstab08

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Abstract

Computer simulations using the 2D code POSINST were used to study the formation of the electron cloud in the wiggler section of the positron damping ring of the International Linear Collider. In order to simulate an x-y slice of the wiggler (i. e., a slice perpendicular to the beam velocity), each simulation assumed a constant vertical magnetic field. At values of the magnetic field where the cyclotron frequency was an integral multiple of the bunch frequency, and where the field strength was less than approximately 0.6 T, equilibrium average electron densities were up to 3 times the density found at other neighboring field values. Effects of this resonance between the bunch and cyclotron frequency are expected to be non-negligible when the beam bunch length is much less than the product of the electron cyclotron period and the beam velocity, for a beam moving at v ≈ c. Details of the dynamics of the resonance are described.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevSTAB.11.091002DOIUNSPECIFIED
http://prst-ab.aps.org/abstract/PRSTAB/v11/i9/e091002PublisherUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevSTAB.11.091002PublisherUNSPECIFIED
Additional Information:© 2008 The American Physical Society.Received 24 June 2008; published 29 September 2008. This work was supported by the Office of Science, U. S. Department of Energy, under Contract No. DE-AC02-05CH11231. PACS: 29.27.Bd,29.20.db
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Office of Science, U. S. Department of EnergyDE-AC0205CH11231
Record Number:CaltechAUTHORS:CELprstab08
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:CELprstab08
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:13470
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:27 May 2009 22:19
Last Modified:26 Dec 2012 10:50

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