Paper |
Title |
Page |
THPAK002 |
Updated Model of the Resistive Wall Impedance for the Main Ring of J-PARC |
3204 |
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- B. Yee-Rendón, Y.H. Chin, H. Kuboki, T. Toyama
KEK, Ibaraki, Japan
- M. Schenk
CERN, Geneva, Switzerland
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The resistive wall impedance is one of the major contributors of the impedance in the Main Ring of J-PARC. The present model assumes round chambers of stainless steel with perfect magnet boundary conditions for its surroundings. This work presents the model of the resistive wall impedances taking into account the different chamber geometries of Main Ring, the materials and more realistic surroundings. The models were benchmarked with measurements of the coherent tune shift of the Main Ring of J-PARC. The simulation of beam instabilities is a helpful tool to evaluate potential threats against the machine protection of the high intensity beams.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2018-THPAK002
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THPML102 |
Field and Cost Optimization of a 5 T/m Normal Conducting Quadrupole for the 10-MeV Beam Line of the eLINAC of the Mexican Particle Accelerator Community |
4905 |
SUSPL080 |
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- D. Chavez Valenzuela, G.H.I. Maury Cuna, M. Napsuciale Mendivil
Universidad de Guanajuato, División de Ciencias e Ingenierías, León, Mexico
- J. C. Basilio Ortiz
CINVESTAV, Mexico City, Mexico
- P.M. McIntyre, A. Sattarov
Texas A&M University, College Station, USA
- C.A. Valerio
ECFM-UAS, Culiacan, Sinaloa, Mexico
- B. Yee-Rendón
KEK, Ibaraki, Japan
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The Mexican Particle Accelerator Community is currently designing the first Mexican RF eLINAC that will have three beamlines at 10, 60 and 100 MeV. In this work, we present an optimized design in terms of field quality and production cost for the 5 T/m normal conducting quadrupoles of the 10-MeV beamline. Several candidate materials for the yoke were studied based on their availability and machinability, with the aim to optimize in-house production cost (Mexico) while restricting a low multipole content.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2018-THPML102
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