| Paper |
Title |
Page |
| MOPMW011 |
The Second Harmonic RF System for J-PARC MR Upgrade |
420 |
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- C. Ohmori, K. Hara, K. Hasegawa, M. Toda, M. Yoshii
KEK, Tokai, Ibaraki, Japan
- M. Nomura, T. Shimada, F. Tamura, M. Yamamoto
JAEA/J-PARC, Tokai-mura, Japan
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Power upgrade scenario of J-PARC Main Ring includes replacement of RF cavities with higher field gradient using magnetic alloy cores, FT3L than the present ones. It also need to install the second harmonic RF cavity in the other section where dedicated water system for RF cavities is not available. Installation scenario of the second harmonic RF will be presented.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-MOPMW011
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| WEPOR022 |
Residual Radiation Measurements at J-PARC MR Using the ASTROCAM 7000HS Newly Developed Radioactive Substance Visualization Camera |
2719 |
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- N. Ikeda, T. Sugano
MHI-MS, Kobe, Japan
- K. Genba, M. Komeda, Y. Kuroda, D.M. Matsuura
MHI, Komaki, Japan
- A. Harayama, T. Takahashi, S. Watanabe
ISAS/JAXA, Kanazawa, Japan
- H. Nakamura, K. Niki, C. Ohmori, M.J. Shirakata
KEK, Ibaraki, Japan
- S. Takeda
OIST, Onna-son, Okinawa, Japan
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Mitsubishi Heavy Industries, Ltd. (MHI) released the ASTROCAM 7000HS, a radioactive substance visualization camera. The ASTROCAM 7000HS incorporates the technologies for the gamma-ray detector used for the ASTRO-H satellite, which MHI has been developing under entrustment from and together with scientists at the Institute of Space and Astronautical Science (ISAS) at the Japan Aerospace Exploration Agency (JAXA), and the design was modified for use on land to commercialize the product. MHI and Mitsubishi Heavy Industries Mechatronics Systems, Ltd. (MHI-MS) performed on-site residual radiation measurements at the 50 GeV Main Ring (MR) of the Japan Proton Accelerator Research Complex (J-PARC) under collaboration with the High Energy Accelerator Research Organization (KEK) and the Japan Atomic Energy Agency (JAEA) and succeeded visualization of radiation hot spots of the accelerator components. The outline of the ASTROCAM 7000HS, the measurement principle and the first measurement results at the J-PARC MR are described.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-WEPOR022
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| THPMR025 |
Simulation of Beam Behavior Caused by Odd Harmonics of Beam Loading in J-PARC RCS |
3443 |
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- M. Yamamoto, M. Nomura, T. Shimada, F. Tamura
JAEA/J-PARC, Tokai-mura, Japan
- K. Hara, K. Hasegawa, C. Ohmori, M. Toda, M. Yoshii
KEK, Tokai, Ibaraki, Japan
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The J-PARC RCS accelerates 2 bunches at the harmonic number 2. The major Fourier component of the beam current is even harmonics. However, the odd harmonics grow under some conditions even though they are very small amplitude at the beginning. We describe the the particle tracking simulation results for the odd harmonic beam loading effect in the RCS.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-THPMR025
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