Author: Kobayashi, H.
Paper Title Page
WEOAB02 Wide-band Induction Acceleration in the KEK Digital Accelerator 1893
SUSPSNE021   use link to see paper's listing under its alternate paper code  
 
  • T. Yoshimoto, X. Liu, K. Takayama
    TIT, Yokohama, Japan
  • T. Adachi, K. Takayama
    Sokendai, Ibaraki, Japan
  • T. Adachi, T. Arai, E. Kadokura, T. Kawakubo, X. Liu, K. Okamura, S. Takano, K. Takayama, T. Yoshimoto
    KEK, Ibaraki, Japan
  • H. Asao, Y. Okada
    NETS, Fuchu-shi, Japan
  • M. Hirose, H. Kobayashi
    Tokyo City University, Tokyo, Japan
 
  Induction synchrotron can accelerate any ion species directly to higher energy without a large pre-accelerator, due to its intrinsic nature that there is no frequency band-width limitation below 1 MHz. KEK digital accelerator (DA) is a small scale prototype of fast cycling induction synchrotron. Recently it has been confirmed that heavy ion beams of mass to charge ratio A/Q = 4 are stably accelerated from 200 keV to a few tens of MeV in this accelerator ring*, where the revolution frequency changes from82 kHz to 1 MHz. Acceleration and beam confinement are separately realized by pulse voltages generated in induction cells (1 to 1 pulse transformers) driven by the switching power supply (SPS)**. Everything is simply maneuvered by controlling of gate signals of solid-state switching elements employed in the SPS. For this purpose, the fully programmed acceleration control system based on the FPGA has been developed. In this paper, the wide-band induction acceleration is presented with experimental results. Further possibilities of beam handling in the induction synchrotron, such as super bunch and novel beam handling techniques, are discussed.
* K.Takayama et al., to be submitted to Phys. Rev. Lett. (2013).
** T.Iwashita et al., Phys. Rev. ST-AB 14, 071301(2011).
 
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEOAB02  
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