Author: Wada, K.
Paper Title Page
WEPGW032 Evaluation of 2-D Transverse Beam Profile Monitor Using Gas Sheet at J-PARC LINAC 2539
  • J. Kamiya, Y. Hikichi, M. Kinsho, K. Moriya, N. Ogiwara, K. Okabe
    JAEA/J-PARC, Tokai-mura, Japan
  • K. Wada
    Tokyo Electronics Co. Ltd., Kokubunji, Tokyo, Japan
  • I. Yamada
    Doshisha University, Graduate School of Engineering, Kyoto, Japan
  A transverse beam profile monitor, which detects ions or luminescence generated by the interaction between the beam and the gas molecules distributed in a sheet shape, has been developed in the J-PARC LINAC. To know about the gas density distribution of the sheet-shaped gas, which affects the intensity distribution of the detected signal, the calculation by the Monte Carlo simulation code was performed. The calculation results showed that the gas with a narrow width along beam direction distributes enough uniformly within a realistic beam cross-sectional size. In addition, the unsaturated region against the MCP voltage and the injected gas pressure are evaluated based on the measurement with a beam. The results showed that the measurement in the low injected gas pressure with the appropriate applied voltage range is important to measure the beam profile in the unsaturated region.  
DOI • reference for this paper ※  
About • paper received ※ 29 April 2019       paper accepted ※ 23 May 2019       issue date ※ 21 June 2019  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)