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Title: Waveguide Structures for RF Undulators with Applications to FELs and Storage Rings

Abstract

RF undulators, suggested a long time ago, have the advantage of fast dynamic control of polarization, undulator strength and wavelength. However, RF undulators require very strong RF fields in order to produce radiation of the same order as conventional static devices. Very high power RF energy confined inside a waveguide or a cavity can provide the necessary RF fields to undulate the electron beam. However, the wall losses in the waveguide should be low enough to make it practically feasible as a CW or quasi CW undulator and, hence, competitive with static devices for applications to storage rings and FELs. Here we present various waveguide structures such as smooth walled and corrugated walled waveguides and various RF modes. We will show that there are some advantages in operating with higher order modes and also with hybrid modes in the corrugated guide. We will show that the RF power requirement for some of these modes will permit a quasi CW operation of the undulator, thus permitting its operation in a storage ring.

Authors:
; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1028701
Report Number(s):
SLAC-PUB-14670
TRN: US1105593
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Conference
Journal Name:
Conf.Proc.C0806233:wepc136,2008
Additional Journal Information:
Conference: EPAC'08, 11th European Particle Accelerator Conference, 23-27 June 2008, Genoa, Italy
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; CONTROL; DYNAMICS; ELECTRON BEAMS; ENERGY; EQUIPMENT; HYBRIDIZATION; LICENSES; LOSSES; MEETINGS; OPERATION; ORDERS; PARTICLES; POLARIZATION; POWER; RADIATIONS; STORAGE RINGS; USES; WALLS; WAVEGUIDES; WIGGLER MAGNETS; Accelerators,ACCSYS

Citation Formats

Yeddulla, M, Geng, H G, Huang, Z, Ma, Z, Tantawi, S G, and /SLAC. Waveguide Structures for RF Undulators with Applications to FELs and Storage Rings. United States: N. p., 2011. Web.
Yeddulla, M, Geng, H G, Huang, Z, Ma, Z, Tantawi, S G, & /SLAC. Waveguide Structures for RF Undulators with Applications to FELs and Storage Rings. United States.
Yeddulla, M, Geng, H G, Huang, Z, Ma, Z, Tantawi, S G, and /SLAC. Wed . "Waveguide Structures for RF Undulators with Applications to FELs and Storage Rings". United States. https://www.osti.gov/servlets/purl/1028701.
@article{osti_1028701,
title = {Waveguide Structures for RF Undulators with Applications to FELs and Storage Rings},
author = {Yeddulla, M and Geng, H G and Huang, Z and Ma, Z and Tantawi, S G and /SLAC},
abstractNote = {RF undulators, suggested a long time ago, have the advantage of fast dynamic control of polarization, undulator strength and wavelength. However, RF undulators require very strong RF fields in order to produce radiation of the same order as conventional static devices. Very high power RF energy confined inside a waveguide or a cavity can provide the necessary RF fields to undulate the electron beam. However, the wall losses in the waveguide should be low enough to make it practically feasible as a CW or quasi CW undulator and, hence, competitive with static devices for applications to storage rings and FELs. Here we present various waveguide structures such as smooth walled and corrugated walled waveguides and various RF modes. We will show that there are some advantages in operating with higher order modes and also with hybrid modes in the corrugated guide. We will show that the RF power requirement for some of these modes will permit a quasi CW operation of the undulator, thus permitting its operation in a storage ring.},
doi = {},
journal = {Conf.Proc.C0806233:wepc136,2008},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {11}
}

Conference:
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