H. Yokomizo

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Publications (2)0 Total impact

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    Conference Proceeding: Development of a proton accelerator for the JAERI Neutron Science Project
    N. Akaoka, E. Chishiro, K. Hasegawa, M. Ichihara, M. Ikegami, T. Ito, M. Kinsho, J. Kusano, E. Minehara, M. Mizumoto, K. Mukugi, F. Noda, H. Oguri, N. Ouchi, J. Sawada, H. Takado, O. Takeda, T. Tomisawa, H. Yokomizo
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    ABSTRACT: The Japan Atomic Energy Research Institute has been proposing the Neutron Science Project (NSP). The joint project of the NSP and the JHF of KEK is under discussion. The new project makes use of the R&D results of the NSP and the JHF. The R&D activities of the proton accelerator at JAERI will be presented in this paper. The development work and characteristics measurements have been made for the low energy components of the linac; performance tests of a negative hydrogen ion source, development of an integrated type RFQ and high duty factor power tests of a DTL model tank. A superconducting linac is a main option for the high energy part of the linac. Vertical tests of a single cell superconducting cavity have been made. The maximum peak surface fields of 44 MV/m and 47 MV/m have been achieved for β=0.5 and 0.89 cavities, respectively. A 600 MHz IOT RF source has been manufactured and dummy load tests at 35 kW CW have been successfully conducted
    Particle Accelerator Conference, 1999. Proceedings of the 1999; 02/1999
  • Source
    Conference Proceeding: A design study of the proton storage ring for the Neutron Science Project at JAERI
    M. Kinsho, F. Noda, J. Kusano, M. Mizumoto, H. Yokomizo
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    ABSTRACT: The goal of the proposed Neutron Science Project (NSP) at JAERI is to provide a short pulsed proton beam of less than 1 μs with an average beam power of 5 MW. To achieve such purpose, a proton storage ring operated at 50 Hz with 4.17×10<sup>14</sup> protons per pulse at 1.5 GeV is required. Two kinds of a lattice are examined as a lattice of the proton storage ring for neutron science project. One is FODO lattice and the other is Triple Bend Achromatic (TBA) lattice. This paper describes preliminary results of the lattice design for the proton storage ring
    Particle Accelerator Conference, 1999. Proceedings of the 1999; 02/1999

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