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Beam Test of the CERN PSB Wide-band RF System Prototype in the J-PARC MR
/ Tamura, Fumihiko (JAEA, Ibaraki ; KEK, Tsukuba) ; Hasegawa, Katsushi (JAEA, Ibaraki ; KEK, Tsukuba) ; Ohmori, Chihiro (JAEA, Ibaraki ; KEK, Tsukuba) ; Yoshii, Masahito (JAEA, Ibaraki ; KEK, Tsukuba) ; Paoluzzi, Mauro (CERN)
In the framework of the LHC Injectors Upgrade project (LIU), a complete replacement of the existing narrow-band rf systems of CERN PSB with wide-band magnetic alloy (MA) loaded rf systems is in progress. A single gap MA loaded rf system prototype, which uses solid-state power amplifier and includes fast rf feedback for beam loading compensation, has been installed in the J-PARC MR to investigate the system behavior with high intensity proton beams. [...]
2014 - 3 p.
- Published in : , pp. THPME065
Fulltext: PDF; External link: Published version from JACoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.THPME065
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2.
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Design Studies on a High-Power Wide-Band RF Combiner for Consolidation of the Driver Amplifier of the J-PARC RCS
/ Okita, Hidefumi (KEK, Tsukuba ; J-PARC) ; Hara, Keigo (KEK, Tsukuba ; J-PARC) ; Hasegawa, Katsushi (KEK, Tsukuba ; J-PARC) ; Nomura, Masahiro (KEK, Tsukuba ; J-PARC) ; Ohmori, Chihiro (KEK, Tsukuba ; J-PARC) ; Paoluzzi, Mauro (CERN) ; Shimada, Taihei (KEK, Tsukuba ; J-PARC) ; Sugiyama, Yasuyuki (KEK, Tsukuba ; J-PARC) ; Tamura, Fumihiko (KEK, Tsukuba ; J-PARC) ; Yamamoto, Masanobu (KEK, Tsukuba ; J-PARC) et al.
A power upgrade of the existing 8 kW solid-state driver amplifier is required for the acceleration of high intensity proton beams in the J-PARC 3 GeV rapid cycling synchrotron (RCS). The development of a 25 kW amplifier with gallium nitride (GaN) HEMTs and based on 6.4 kW modules is ongoing. [...]
2022 - 3 p.
- Published in : JACoW IPAC 2022 (2022) 1333-1335
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1333-1335
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20-Year Collaboration on Synchrotron RF Between CERN and J-PARC
/ Ohmori, Chihiro (J-PARC) ; Brucoli, Matteo (CERN) ; Brugger, Markus (CERN) ; Damerau, Heiko (CERN) ; Danzeca, Salvatore (CERN) ; Hasegawa, Katsushi (J-PARC) ; Morita, Yuichi (J-PARC) ; Okita, Hidefumi (J-PARC) ; Paoluzzi, Mauro (CERN) ; Rossi, Carlo (CERN) et al.
in 2002, KEK/J-PARC and CERN started the collaboration on the RF systems of Low Energy Ion Ring to use magnetic alloy loaded cavities in 2002 for heavy ion collision program at LHC. It was an exchange of our expertise on the wideband cavities and high-power solid-state amplifiers. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 3130
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.3130
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Beam Profile Monitor of the J-PARC 3GeV Rapid Cycling Synchrotron
/ Satou, K (JAEA, Ibaraki) ; Harada, H (ADSM, Hiroshima) ; Hayashi, N (JAEA, Ibaraki) ; Lee, S (JAEA, Ibaraki) ; Saeki, R (JAEA, Ibaraki) ; Tejima, M (KEK, Tsukuba) ; Toyama, T (JAEA, Ibaraki) ; Ueno, A (JAEA, Ibaraki) ; Yamamoto, K (JAEA, Ibaraki)
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.TUPC093
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5.
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Beam Instrumentations for the J-PARC RCS Commissioning
/ Hayashi, N (JAEA, Ibaraki) ; Arakawa, D A (KEK, Tsukuba) ; Hiramatsu, S (KEK, Tsukuba) ; Hiroki, S (JAEA, Ibaraki) ; Lee, S (JAEA, Ibaraki) ; Saeki, R (JAEA, Ibaraki) ; Satou, K (JAEA, Ibaraki) ; Tejima, M (KEK, Tsukuba) ; Toyama, T (JAEA, Ibaraki) ; Toyokawa, R (JAEA, Ibaraki) et al.
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.TUPC034
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6.
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The Status of the J-PARC RF Systems
/ Yoshii, M (KEK, Tsukuba) ; Anami, S (KEK, Tsukuba) ; Ezura, E (KEK, Tsukuba) ; Haga, K (JAEA, Ibaraki) ; Hara, K (KEK, Tsukuba) ; Hasegawa, K (JAEA, Ibaraki) ; Nomura, M (JAEA, Ibaraki) ; Ohmori, C (KEK, Tsukuba) ; Schnase, A (JAEA, Ibaraki) ; Takagi, A (KEK, Tsukuba) et al.
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.MOPC134
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7.
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Beam Acceleration with Full-digital LLRF Control System in the J-PARC RCS
/ Tamura, F (JAEA, Ibaraki) ; Anami, S (KEK, Tsukuba) ; Ezura, E (KEK, Tsukuba) ; Haga, K (JAEA, Ibaraki) ; Hara, K (KEK, Tsukuba) ; Hasegawa, K (JAEA, Ibaraki) ; Nomura, M (JAEA, Ibaraki) ; Ohmori, C (KEK, Tsukuba) ; Schnase, A (JAEA, Ibaraki) ; Takagi, A (KEK, Tsukuba) et al.
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.MOPC126
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8.
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Beam Commissioning Results of the RCS Injection and Extraction at J-PARC
/ Saha, P K (JAEA, Ibaraki) ; Harada, H (ADSM, Hiroshima) ; Hayashi, N (JAEA, Ibaraki) ; Hotchi, H (JAEA, Ibaraki) ; Irie, Y (KEK, Tsukuba) ; Noda, F (JAEA, Ibaraki) ; Shobuda, Y (JAEA, Ibaraki)
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.THPP105
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9.
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The Beam Position Monitor System of the J-PARC RCS
/ Hayashi, N (JAEA, Ibaraki) ; Arakawa, D A (KEK, Tsukuba) ; Hiramatsu, S (KEK, Tsukuba) ; Hiroki, S (JAEA, Ibaraki) ; Lee, S (JAEA, Ibaraki) ; Saeki, R (JAEA, Ibaraki) ; Satou, K (JAEA, Ibaraki) ; Tejima, M (KEK, Tsukuba) ; Toyama, T (JAEA, Ibaraki) ; Toyokawa, R (JAEA, Ibaraki) et al.
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.TUPC035
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10.
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Grounding and Induced Voltage Issues of the Injection Bump Magnet System of the 3-GeV RCS in J-PARC
/ Takayanagi, T (JAEA, Ibaraki) ; Irie, Y (KEK, Tsukuba) ; Kamiya, J (JAEA, Ibaraki) ; Kinsho, M (JAEA, Ibaraki) ; Ueno, T (JAEA, Ibaraki) ; Watanabe, M (JAEA, Ibaraki) ; Yoshimoto, M (JAEA, Ibaraki)
2008 - 3 p.
External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.TUPD016
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