Paper |
Title |
Page |
THPO003 |
Rapid-cycling Power Supplies for the J-PARC RCS Sextupole Magnets |
3338 |
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- Y. Watanabe
JAEA, Ibaraki-ken, Japan
- T. Adachi, S. Igarashi, H. Someya
KEK, Ibaraki, Japan
- N. Tani
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
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The rapid-cycling synchrotron of the Japan Proton Accelerator Research Complex requires 18 sextupole magnets with three families for the chromaticity correction. One family consists of six focusing sextupole magnets, and other two families consist of six defocusing sextupole magnts. An individual power supply excited for each family and the current pattern is a DC-biased sinusoidal of a frequency of 25 Hz. This paper describes design and test results of the sextupole magnet power supplies.
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THPO028 |
Upgrade Design of the Bump System in the J-PARC 3-GeV RCS |
3403 |
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- T. Takayanagi, N. Hayashi, M. Kinsho, Y. Watanabe
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
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The 3-GeV RCS aims at providing at least 300 kW output beam power with the injection beam at 181 MeV. In the second stage, the upgrade of the LINAC beam energy to 400 MeV was funded and started in March 2009. This plan will be completed in 2012. Consequently, the 3-GeV RCS will aim at 1 MW beam power. The injection bump system of the RCS is composed of the shift bump-magnets, the horizontal paint bump-magnets and the vertical paint magnets.
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