Paper |
Title |
Page |
SUPB026 |
Multipacting Analysis of High-velocity Superconducting Spoke Resonators |
68 |
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- C.S. Hopper, J.R. Delayen
ODU, Norfolk, Virginia, USA
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Some of the advantages of superconducting spoke cavities are currently being investigated for the high-velocity regime. When determining a final, optimized geometry, one must consider the possible limiting effects multipacting could have on the cavity. We report on the results of analytical calculations and numerical simulations of multipacting electrons in superconducting spoke cavities and methods for reducing their impact.
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SUPB038 |
Multipole Field Effects for the Superconducting Parallel-Bar Deflecting/Crabbing Cavities |
92 |
|
- S.U. De Silva, J.R. Delayen
ODU, Norfolk, Virginia, USA
- S.U. De Silva
JLAB, Newport News, Virginia, USA
|
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The superconducting parallel-bar deflecting/crabbing cavity is currently being considered as one of the design options in rf separation for the Jefferson Lab 12 GeV upgrade and for the crabbing cavity for the proposed LHC luminosity upgrade. Knowledge of multipole field effects is important for accurate beam dynamics study of rf structures. The multipole components can be accurately determined numerically using the electromagnetic surface field data in the rf structure. This paper discusses the detailed analysis of those components for the fundamental deflecting/crabbing mode and higher order modes in the parallel-bar deflecting/crabbing cavity.
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MOPB056 |
Multipacting Analysis of High-Velocity Superconducting Spoke Resonators |
303 |
|
- C.S. Hopper, J.R. Delayen
ODU, Norfolk, Virginia, USA
|
|
|
Some of the advantages of superconducting spoke cavities are currently being investigated for the high-velocity regime. When determining a final, optimized geometry, one must consider the possible limiting effects multipacting could have on the cavity. We report on the results of analytical calculations and numerical simulations of multipacting electrons in superconducting spoke cavities and methods for reducing their impact.
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|
MOPB072 |
Multipole Expansion of the Fields in Superconducting High-Velocity Spoke Cavities |
345 |
|
- R.G. Olave, J.R. Delayen, C.S. Hopper
ODU, Norfolk, Virginia, USA
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Multi-spokes superconducting cavities in the high-beta regime are being considered for a number of applications. In order to accurately model the dynamics of the particles in such cavities, knowledge of the fields off-axis are needed. We present a study of the multipoles expansion of the fields from an EM simulation field data for a two-spoke cavity operating at 325 MHz, β = 0.82 and 500 MHz, β = 1.
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TH1A03 |
Superconducting Spoke Cavities for Electron and High-Velocity Proton Linacs |
758 |
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- J.R. Delayen
ODU, Norfolk, Virginia, USA
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Spoke resonantors are currently under development for many proton machines but these structures are also considered for high beta electron linacs as well. These structures compare well to traditional elliptical cavities.
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Slides TH1A03 [3.570 MB]
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THPB062 |
Multipole Field Effects for the Superconducting Parallel-Bar/RF-Dipole Deflecting/Crabbing Cavities |
981 |
|
- S.U. De Silva, J.R. Delayen
ODU, Norfolk, Virginia, USA
- S.U. De Silva
JLAB, Newport News, Virginia, USA
|
|
|
The superconducting parallel-bar deflecting/crabbing cavity is currently being considered as one of the design options in rf separation for the Jefferson Lab 12 GeV upgrade and for the crabbing cavity for the proposed LHC luminosity upgrade. Knowledge of multipole field effects is important for accurate beam dynamics study of rf structures. The multipole components can be accurately determined numerically using the electromagnetic surface field data in the rf structure. This paper discusses the detailed analysis of those components for the fundamental deflecting/crabbing mode and higher order modes in the parallel-bar deflecting/crabbing cavity.
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