Asian Regional Outlook Japan by Y'Kuno Osaka

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Asian Regional Outlook (Japan)
-by Y.Kuno (Osaka)

• (1) SuperBeam (T2K)
• (2) J-PARC current upgrade plan
• (3) T2HK or T2KK
• (4) FFAG muon acceleration for neutrino factory
  RD/PRISM RD for muon physics
• (5) Contribution to ISS and continue contribution
  to IDS (to be discussed tomorrow)

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Construction Schedule
Status
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Construction Schedule

• Mile Stones
• Start the Linac Beam Commissioning Dec., 2006
• Start the RCS Beam Commissioning Sep., 2007
• (start to transport the beam from the linac
  to the
• RCS)
• Start the MR Beam Commissioning May, 2008
• (start to transport the beam to MR and/or MLF)
• Start the Experiment sometime in JFY2008

Status
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Beam Power Goal
Final Goal (Phase II)

• MR 0.75 MW (50 GeV, 15 ?A), slow and fast
  extraction for nuclear and particle physics
  experiments
• RCS 1 MW (3 GeV, lt1 ms, 25 Hz) for spallation
  neutron source

Phase I Goal

• MR 0.6 MW (40 GeV, 15 ?A)
• RCS 1 MW (3 GeV, 333 mA)

Phase I0 Goal

• MR 0.36 MW (40 GeV, 9 ?A)
• RCS 0.6 MW (3 GeV, 200 mA)

In order to increase the MR beam power beyond
this level, various operational modes have been
proposed, including the increase in the number of
MR bunches, the increase in the MR repetition,
and so forth. However, the accomplishment of the
Phase I0 Goal with the robust, reliable hardware
is most important. Then, the attempts of various
operational modes will be realistic, and
efficient.
Ring
4
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T2KK
Ishitsuka et al. PRD 72 (2005) 033003
sign(Dm2)
CP violation
Hyper-K
T2KK (0.270.27Mt)
2s
3s
T2K-II (0.54Mt)
Distance from the target (km)
JPARC
Korea L10001250km OA 1.02.5deg
Kamioka L295km OA2.5deg
Off-axis angle
K. Hagiwara Nucl. Phys. Proc. Suppl. 137 84 (2004)
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PRISM/PRIME
?-e conversion experiment sensitivity BR-
10-18 1011-12?-/sec 68MeV/c - 2 by
phase rotation in a FFAG
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Progress in PRISM-FFAG magnet

• The first batch of PRISM-FFAG magnet has been
  delivered in May, 2006.
• Successful setup in KEK test area
• Field map of one of the magnets has been measured
  by 3D-scanning probes
• Finish the measurement for 3 of the magnets, and
  check the field quality in Sep., 2006.
• The second production batch will be delivered by
  March, 2007.
• Will study optics using alpha particles (2007)

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MICE
KEK pi2 beam line

• SciFi Tracker
• Successfully tested tracker prototype in KEK test
  beam (2005)
• Improving quality control scheme for full tracker
  production
• Will prepare waveguides for full tracker
• Install full tracker in RAL, and start
  commissioning in Oct. 2007.
• Liquid Hydrogen Absorber
• Convection-type absorber cooled by He flow has
  been successfully filled with LH2 in MTA at FNAL
  (2005)
• Further test is scheduled in collaboration with
  MUCOOL

Tracker prototype inside 1T solenoid
KEK absorber II
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