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Title: Beam coupling impedance of fast stripline beam kickers

Abstract

A fast stripline beam kicker is used to dynamically switch a high current electron beam between two beamlines. The transverse dipole impedance of a stripline beam kicker has been previously determined from a simple transmission line model of the structure. This model did not include effects due to the long axial slots along the structure as well as the cavities and coaxial feed transition sections at the ends of the structure. 3-D time domain simulations show that the simple transmission line model underestimates the low frequency dipole beam coupling impedance by about 20% for our structure. In addition, the end cavities and transition sections can exhibit dipole impedances not included in the transmission line model. For high current beams, these additional dipole coupling terms can provide additional beam-induced steering effects not included in the transmission line model of the structure.

Authors:
; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
9761
Report Number(s):
UCRL-JC-131947; 39DP01000
39DP01000; TRN: US0103192
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: 1999 Particle Accelerator Conference (PAC), New York, NY (US), 03/29/1999--04/02/1999; Other Information: PBD: 1 Mar 1999
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; CAVITIES; DIPOLES; ELECTRON BEAMS; IMPEDANCE; KICKER MAGNETS; MATHEMATICAL MODELS; COUPLING; BEAM DYNAMICS

Citation Formats

Caporaso, G, Chen, Y J, Nelson, A D, and Poole, B R. Beam coupling impedance of fast stripline beam kickers. United States: N. p., 1999. Web.
Caporaso, G, Chen, Y J, Nelson, A D, & Poole, B R. Beam coupling impedance of fast stripline beam kickers. United States.
Caporaso, G, Chen, Y J, Nelson, A D, and Poole, B R. Mon . "Beam coupling impedance of fast stripline beam kickers". United States. https://www.osti.gov/servlets/purl/9761.
@article{osti_9761,
title = {Beam coupling impedance of fast stripline beam kickers},
author = {Caporaso, G and Chen, Y J and Nelson, A D and Poole, B R},
abstractNote = {A fast stripline beam kicker is used to dynamically switch a high current electron beam between two beamlines. The transverse dipole impedance of a stripline beam kicker has been previously determined from a simple transmission line model of the structure. This model did not include effects due to the long axial slots along the structure as well as the cavities and coaxial feed transition sections at the ends of the structure. 3-D time domain simulations show that the simple transmission line model underestimates the low frequency dipole beam coupling impedance by about 20% for our structure. In addition, the end cavities and transition sections can exhibit dipole impedances not included in the transmission line model. For high current beams, these additional dipole coupling terms can provide additional beam-induced steering effects not included in the transmission line model of the structure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {3}
}

Conference:
Other availability
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