| Paper |
Title |
Page |
| WEPMA035 |
Degradation of the Beam passing through Idle Coupled Cavities
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369 |
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- Y. Shobuda
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
- S. Machida
STFC/RAL/ASTeC, Chilton, Didcot, Oxon
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Effects of wake fields on high intensity proton beam are studied, when it passes through idle coupled cavities. There is the same number of frequencies as the number of gaps that consist on the coupled cavity. Since cavities are designed for the accelerated beam, the shunt impedance for each mode is different from the designed value, when the beam is not accelerated. This change of shunt impedances reduces the detuning effect for the reduction of beam degradation.
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