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Title Beam Induced Fluorescence Monitor R&D for the J-PARC Neutrino Beamline
  • M.L. Friend
    KEK, Ibaraki, Japan
  • C. Bronner, M. Hartz
    Kavli IPMU, Kashiwa, Japan
Abstract Proton beam monitoring is essential for the J-PARC neutrino beamline, where neutrinos are produced by the collision of 30 GeV protons with a long carbon target. Along with continued upgrades to the J-PARC beam power, from the current 420 kW to 1.3+ MW, there is also a requirement for monitor upgrades. A Beam Induced Fluorescence monitor is under development, which would continuously and non-destructively measure the proton beam profile spill-by-spill by measuring fluorescence light from proton interactions with gas injected into the beamline. Monitor design is constrained by the J-PARC neutrino beamline configuration, where a major challenge will be getting sufficient signal to precisely reconstruct the proton beam profile. R&D for a pulsed gas injection system is under way, where injected gas uniformity and vacuum pump lifetime are main concerns. Design of a light detection system is also under way, where light transport away from the high radiation environment near the proton beamline, as well as fast detection down to very low light levels, are essential.
Paper download WEPG66.PDF [1.810 MB / 4 pages]
Conference IBIC2016, Barcelona, Spain
Series International Beam Instrumentation Conference (5th)
Proceedings Link to full IBIC2016 Proccedings
Session Wednesday Poster Session
Date 14-Sep-16   16:00–18:00
Main Classification Transverse Profile Monitors
Keywords proton, radiation, injection, space-charge, vacuum
Publisher JACoW, Geneva, Switzerland
Editors Isidre Costa (ALBA-CELLS, Barcelona, Spain); Ubaldo Iriso (ALBA-CELLS, Barcelona, Spain); Francis PĂ©rez (ALBA-CELLS, Barcelona, Spain); Volker RW Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-177-9
Published February 2017
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