Accelerators

Overview

The J-PARC accelerators consist of the following three accelerators;

  • LINAC (400MeV)
  • RCS (Rapid Cycling Synchrotron) (3GeV)
  • MR (Main RingSynchrotron) (30GeV)

Each accelerator produces the world's top class high-energy proton beam, and supplies the beam to the Materials and Life Science Experimental Facility, the Hadron Experimental Facility, and the Neutrino Experimental Facility. In each experimental facility, secondary particles such as neutrons, muons, kaons and μ-neutrinos generated by colliding proton beams with targets such as mercury, gold and carbon are used for advanced experiments.

accelerator_ja140218.jpg

Technical Information

  • Machine Parameters
    LINAC RCS MR (FX / SX)
    Energy 400 MeV 3 GeV 30 GeV
    Repetition cycle 40 ms (25 Hz) 40 ms (25 Hz) 2.48 s / 5.20 s
    Current(pulse or averaged) 60 mA x 500 μs 176 μA 16.7 μA / 1.83 μA
    Beam Power 530 kW 500 kW / 55 kW
  • Machine Parameters(old page)
  • Accelerator Current Status(old page)
  • Accelerator Current Status(intra net)

Comittee, Meetings

  • ATAC (Accelerator Technical Advisory Committee) 2019 : 2019.2.28 -- 3.2

Documents

  • ACCELERATOR TECHNICAL DESIGN REPORT FOR J-PARC
    • Accelerator Group, JAERI/KEK Joint Project Team
    • KEK report, 2002-13, JAERI-Tech 2003-044, J-PARC 03-01
    • March 2003
    • web page(J-PARC intra)

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