The Impedance of Selected Components of the Synchrotron Light Source Petra III

At DESY it is planned to convert the PETRA ring into a synchrotron radiation facility, called PETRA III, in 2007. Since the impedance of the machine determines its performance with respect to coupled and single bunch instabilities it is important to know the wakefields and higher order modes (HOMs)...

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Bibliographic Details
Main Authors: Balewski, K., Wanzenberg, R.
Format: Conference Proceeding
Language:English
Subjects:
Bellows
Damping
Electron beams
Electron emission
Impedance
Light sources
Physics
Positrons
Synchrotron radiation
Vacuum systems
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Summary:At DESY it is planned to convert the PETRA ring into a synchrotron radiation facility, called PETRA III, in 2007. Since the impedance of the machine determines its performance with respect to coupled and single bunch instabilities it is important to know the wakefields and higher order modes (HOMs) of the different components of the vacuum system. Numerical calculations of wakefields are presented for several components of PETRA III, including the rf-cavities, shielded bellows and tapered vacuum chamber transitions. The impedance of these components is presented in terms of the loss and kick parameters.
ISSN:1944-4680
2152-9582
DOI:10.1109/PAC.2005.1590901