Coupling impedance of beam pipes of general cross section
نویسندگان
چکیده
منابع مشابه
Resistive Wall Impedance of Beam Pipes of General Cross Section
A method of calculating the coupling impedance and the wake function of resistive beam pipes is given including the short-range behavior of the wake. The pipe is uniform longitudinally but the cross section is arbitrary. The beam is assumed to be ultra-relativistic. A simple computer code is written using the boundary element method. Some results for elliptic, rectangular and hyperbolic pipes a...
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The effect of (a huge number of) pumping holes on beam dynamics and stability, described in terms of coupling impedances, is a fundamental issue and has been carefully investigated, both theoretically [1] and experimentally [2]. With the exception of a few very simple pipe geometris, for which the modal expansion of the electromagnetic field is available, beam coupling impedances can be only co...
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The beam impedance of monopole modes in a pipe with periodic, smooth and shallow corrugation has been calculated. The approach uses an orthogonal TM field expansion with Bessel functions and an impedance boundary condition, which takes into account resistive wall effects. The approach is valid for corrugations with period lengths larger, smaller and of the same order as the free space wavelengt...
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A detailed knowledge of the beam coupling impedance of the CERN Super Proton Synchrotron (SPS) is required in order to operate this machine with a higher intensity for the foreseen Large Hadron Collider (LHC) luminosity upgrade. A large number of Beam Position Monitors (BPMs) is currently installed in the SPS, and this is why their contribution to the SPS impedance has to be assessed. This pape...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 1993
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.47.656