Author: Oyaizu, M.
Paper Title Page
WEPB29 Observation of Sublimation Effect of Mg and Ti Ions at the Hyper-Electron Cyclotron Resonance Ion Source 262
 
  • H. Muto, Y. Kotaka, S. Kubono, Y. Ohshiro, S. Shimoura, S.-I. Watanabe, H. Yamaguchi, S. Yamaka
    CNS, Saitama, Japan
  • T. Hattori
    NIRS, Chiba-shi, Japan
  • M. Kase, S. Kubono
    RIKEN Nishina Center, Wako, Japan
  • K. Kobayashi, M. Nishimura
    SHI Accelerator Service Ltd., Tokyo, Japan
  • M. Oyaizu
    KEK, Ibaraki, Japan
  
  Light intensities of a grating monochromator during plasma chamber baking and 24Mg8+ and 48Ti13+ beam operation were observed at the Hyper-Electron Cyclotron Resonance ion source. During chamber baking almost all light intensities were Fe I and Fe II. However, when MgO or TiO2 rod was inserted into the plasma and the beam operation was started the light intensity spectrum was drastically changed and most of the Fe I and Fe II lights were disappeared and Mg or Ti light intensities were coming out. In this paper we describe vacuum conditions of ECR ion source during chamber baking and beam tuning.  
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