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Title: Wakefield potentials of corrugated structures

Abstract

A corrugated structure, which is used in “dechirper” devices, is usually a pipe or two plates with small corrugations (bumps) on the walls. There is a good single-mode description of the wake potentials excited by a relativistic bunch if the wave length of the mode is much longer than the distance between the bumps in the pipe. However, ultrashort bunches, which are now used in free electron lasers, excite much higher frequency fields and the corresponding wake potentials will be very different from the single-mode description. We have made analyses of these wake potentials based on a numerical solution of Maxwell’s equations. It was confirmed that the behavior of the wakefields of ultrashort bunches in corrugated structures is not much different from the fields excited usually in accelerating structures where the wake potentials are described by the exponential function. For a practical application we present results for the SLAC “dechirper.” We also carried out calculations for a similar device, that was installed and measured at the Pohang Accelerator Laboratory, Korea. As a result, we find very good agreement with the experimental results.

Authors:
 [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1224145
Alternate Identifier(s):
OSTI ID: 1228038
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Published Article
Journal Name:
Physical Review Special Topics. Accelerators and Beams
Additional Journal Information:
Journal Volume: 18; Journal Issue: 10; Journal ID: ISSN 1098-4402
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Novokhatski, A. Wakefield potentials of corrugated structures. United States: N. p., 2015. Web. doi:10.1103/PhysRevSTAB.18.104402.
Novokhatski, A. Wakefield potentials of corrugated structures. United States. doi:10.1103/PhysRevSTAB.18.104402.
Novokhatski, A. Thu . "Wakefield potentials of corrugated structures". United States. doi:10.1103/PhysRevSTAB.18.104402.
@article{osti_1224145,
title = {Wakefield potentials of corrugated structures},
author = {Novokhatski, A.},
abstractNote = {A corrugated structure, which is used in “dechirper” devices, is usually a pipe or two plates with small corrugations (bumps) on the walls. There is a good single-mode description of the wake potentials excited by a relativistic bunch if the wave length of the mode is much longer than the distance between the bumps in the pipe. However, ultrashort bunches, which are now used in free electron lasers, excite much higher frequency fields and the corresponding wake potentials will be very different from the single-mode description. We have made analyses of these wake potentials based on a numerical solution of Maxwell’s equations. It was confirmed that the behavior of the wakefields of ultrashort bunches in corrugated structures is not much different from the fields excited usually in accelerating structures where the wake potentials are described by the exponential function. For a practical application we present results for the SLAC “dechirper.” We also carried out calculations for a similar device, that was installed and measured at the Pohang Accelerator Laboratory, Korea. As a result, we find very good agreement with the experimental results.},
doi = {10.1103/PhysRevSTAB.18.104402},
journal = {Physical Review Special Topics. Accelerators and Beams},
number = 10,
volume = 18,
place = {United States},
year = {2015},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevSTAB.18.104402

Citation Metrics:
Cited by: 13 works
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Works referenced in this record:

Wakefields in SLAC linac collimators
journal, December 2014

  • Novokhatski, A.; Decker, F. -J.; Smith, H.
  • Physical Review Special Topics - Accelerators and Beams, Vol. 17, Issue 12
  • DOI: 10.1103/PhysRevSTAB.17.124401

Experimental Demonstration of Energy-Chirp Control in Relativistic Electron Bunches Using a Corrugated Pipe
journal, January 2014


Impedance of a rectangular beam tube with small corrugations
journal, February 2003


Electron beam energy chirp control with a rectangular corrugated structure at the Linac Coherent Light Source
journal, January 2015

  • Zhang, Zhen; Bane, Karl; Ding, Yuantao
  • Physical Review Special Topics - Accelerators and Beams, Vol. 18, Issue 1
  • DOI: 10.1103/PhysRevSTAB.18.010702

A new Green's function for the wake potential calculation of the SLAC S-band constant gradient accelerating section
journal, August 2012

  • Novokhatski, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 684
  • DOI: 10.1016/j.nima.2012.04.087

Field dynamics of coherent synchrotron radiation using a direct numerical solution of Maxwell’s equations
journal, June 2011


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