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Sato, H.

Paper Title Page
MOPAN038 Electric Power Compensation of the Large Scale Accelerator using SMES 239
 
  • H. Sato, t.s. Shintomi, M. J. Shirakata
    KEK, Ibaraki
  • T. Ise, Y. Miura
    Osaka University, Suita
  • S. Nomura
    RLNR, Tokyo
 
  Power supply for the large scale accelerator magnets draws a large amount of power from the utility network. For example, the peak active power and the dissipation power of J-PARC 50GeV synchrotron magnet power are estimated to be about 135MW and 37MW, respectively. Super Conducting Magnetic Energy Storage (SMES) is one of candidates to compensate these large load and line voltage fluctuation. Study on circuit configuration of the power supply with SMES has been continued. Present status of the R & D for the SMES system and small case experiment result will be discussed.  
TUPAN046 A Modification Plan of the KEK 500MeV Booster to an All-ion Accelerators (An Injector-free Synchrotron) 1490
 
  • E. Nakamura, T. Adachi, Y. Arakida, T. Iwashita, M. Kawai, T. Kono, H. Sato, Y. Shimosaki, K. Takayama, M. Wake
    KEK, Ibaraki
  • T. S. Dixit
    GUAS/AS, Ibaraki
  • S. I. Inagaki
    Kyushu University
  • T. Kikuchi
    Utsunomiya University, Utsunomiya
  • K. Okazaki
    Nippon Advanced Technology Co. Ltd., Ibaraki-prefecture
  • K. T. Torikai
    NIRS, Chiba-shi
 
  A medium-energy synchrotron capable of accelerating all ion species based on a novel technology of the induction synchrotron* has been proposed as an all-ion accelerator (AIA)**. The AIA without any specific injector employs a strong focusing lattice and induction acceleration, driven by novel switching power supplies. All ions, including cluster ions with any charge state, are accelerated in a single accelerator. A plan to modify the existing KEK 500 MeV Booster to the AIA is under consideration. Its key aspects, such as an ion-source, a low-field injection scheme and induction acceleration***, are described. Deep implant of moderate-energy heavy ions provided from the AIA into various materials may create a new alloy in bulk size. Energy deposition caused by the electro-excitation associated with passing of swift ions through the material is known to largely modify its structure. The similar irradiation on metal in a small physical space of less than a mm in diameter and in a short time period less than 100 nsec is known to create a particularly interesting warm dense-matter state. The AIA capable is a quite interesting device as a driver to explore these new paradigms.

* K. Takayama, et al., "Experimental Demonstration of the Induction Synchrotron", PAC07.** K. Takayama, et al., PCT/JP2006/308502 (2006).*** T. Dixit, et al., PAC07.