DocumentCode
2880571
Title
Impedance of electron beam vacuum chambers for the NSLS-II storage ring
Author
Blednykh, Alexei ; Krinsky, Samuel
Author_Institution
BNL, New York
fYear
2007
fDate
25-29 June 2007
Firstpage
4333
Lastpage
4335
Abstract
In this paper we discuss computation of the coupling impedance of the vacuum chambers for the NSLS-II storage ring using the electromagnetic simulator GdfidL [1]. The impedance of the vacuum chambers depends on the geometric dimensions of the cross-section and height of the slot in the chamber wall. Of particular concern is the complex geometry of the infrared extraction chambers to be installed in special large-gap dipole magnets. In this case, wakefields are generated due to tapered transitions and large vertical-aperture ports with mirrors near the electron beam.
Keywords
beam handling techniques; electron accelerators; particle accelerator accessories; particle beam dynamics; storage rings; GdfidL electromagnetic simulator; NSLS-II storage ring; coupling impedance; electron beam vacuum chambers; infrared extraction chambers; large-gap dipole magnets; vertical-aperture ports; Boundary conditions; Coaxial components; Computational modeling; Electromagnetic coupling; Electron beams; Geometry; Impedance; Magnets; Mirrors; Storage rings;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location
Albuquerque, NM
Print_ISBN
978-1-4244-0916-7
Type
conf
DOI
10.1109/PAC.2007.4440101
Filename
4440101
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