Author: Sakai, H.
Paper Title Page
MOPA14 A Wide Dynamic-Range Halo Monitor for 8 GeV Proton Beams at FNAL 75
  • Y. Hashimoto, C. Ohmori, T. Sasaki, M. Tejima, T. Toyama, M. Uota
    KEK, Ibaraki, Japan
  • R. Ainsworth
    Fermilab, Batavia, Illinois, USA
  • H. Sakai
    Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
  • Y. Sato
    J-PARC, KEK & JAEA, Ibaraki-ken, Japan
  Funding: Foundation: U.S.-Japan Science and Technology Cooperation Program in High Energy Physics.
Eliminating harmful beam halos is the most important technique for high-intensity proton accelerators. Therefore, beam halo diagnosis is indispensable and becomes more and more important. At J-PARC, a wide dynamic range monitor was installed in the beam transport line in 2012. The device is a two-dimensional beam profile monitor [*, **], and it has a dynamic range of approximately six digits of magnitude by using Optical Transition Radiation and fluorescence screens. The FNAL accelerator complex has been upgrading through increased beam intensity and beam quality. A new beam halo diagnostic device is required in the beam transport line between the booster and recycler. It will be manufactured in a collaboration between J-PARC and FNAL as a part of the U.S.-Japan Science and Technology Cooperation Program in High Energy Physics. We are redesigning the monitor to satisfy FNAL specifications for beam energy, intensity, and size. The equipment will be manufactured at J-PARC and then shipped to FNAL in 2024. In this report, the design of the device will be described.
DOI • reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-MOPA14  
About • Received ※ 03 August 2022 — Revised ※ 07 August 2022 — Accepted ※ 11 August 2022 — Issue date ※ 09 September 2022
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