| Paper |
Title |
Page |
| TUBX03 |
Coupling impedance of the J-PARC kicker magnets
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140 |
| |
- T. Toyama, Y. Hashimoto, E. Nakamura, Y. Shirakabe
KEK, Ibaraki
- J. Kamiya, Y. Shobuda
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
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The single- and twin-wire measurements both for the longitudinal ( ZL ) and transverse impedances ( ZT ) will be discussed for the J-PARC kicker magnets: a lumped circuit kicker and several types of traveling wave kickers. The question if a position shifted single-wire can measure ZT is discussed. The measurement results are compared with the equivalent circuit analysis. The relation between the imaginary part of the impedance and causality will also be discussed.
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| TUBZ01 |
The Beam Diagnostics System for J-PARC Synchrotrons
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128 |
| |
- N. Hayashi, S. H. Hiroki, K. Satou, R. Toyokawa
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
- D. A. Arakawa, Y. Hashimoto, S. Lee, T. Miura, T. Toyama
KEK, Ibaraki
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The beam diagnostics system for J-PARC synchrotrons (RCS and MR) will be presented. The design of the system will be described for high current machines. Some test results will be reported.
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| WEAY03 |
Experimental studies of stability issues at HIMAC cooler
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197 |
| |
- K. Noda, T. Fujisawa, T. Honma
NIRS, Chiba-shi
- M. Aiba, Y. Hashimoto
KEK, Ibaraki
- S. Shibuya
AEC, Chiba
- E. Syresin
JINR, Dubna, Moscow Region
- T. Uesugi
KURRI, Osaka
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We have investigated coherent transverse instability when high-density circulating-ion beam was obtained with cool-stacking injection in the HIMAC synchrotron. By using a cooled beam and the Oxygen gas-sheet beam profile monitor, further, we have observed a particle trapping in resonance crossing. We will report these experimental studies at the HIMAC synchrotron.
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