Muon Detector R

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Muon Detector RD

• Vishnu V. Zutshi
• NIU/NICADD

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RPC based
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RD program
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Status/Plans
Large area RPCs have been produced in
collaboration with industry. Careful studies of
rate capability and instability
issues underway. Interest in a hadron test beam.
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Scintillator based (PMT)
Colo. State, UC Davis, Fermilab, Northern
Illinois Univ., Univ. of Notre Dame, Wayne State
Univ., Univ. of Texas Austin
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Recent Activities

• Study of strip-fiber gluing options
• WLS-Clear fiber splicing studies (avg.
  transmission over 8 fibers 90)
• PMT characterization is underway
• Prototype digitizer/readout under development

NIU
UND
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Plans

• First small plane by March 2005
• Move to Fermilab test beam when 3-4 planes have
  been assembled and tested (estimate 2006).
• Plane sizes being contemplated are 1.25 m x 2.5m
  or 2.5 m x 2.5 m
• Continue with simulation and analysis
• Internationalize the RD effort
• Develop a cost estimate

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Scintillator based (SiPM)
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Test beam prototype

• Fine section (8 layers)
• 2cm thick steel
• Coarse section (8 layers)
• 10cm thick steel
• 5mm thick, 5cm wide strips
• Tyvek/VM2000 wrapping
• Alternating x-y orientation
• Si-PM photo detection
• Common readout with HCal

Will serve the dual purpose of a tail-catcher for
the hadron test beam and a muon
detector prototype.
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Status/Plans

• Strip-fiber optimization RD complete
• All scintillator required for the prototype has
  been produced. QC underway.
• Mechanical prototype cassette fabricated, being
  shaken down.
• Cart design has commenced.
• Fully instrumented plane before the end of the
  year.

Planning to be ready for hadron Test beam in
mid-2005
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Summary

• Vigorous RD for a muon detector which could also
  serve as a tail-catcher underway in gas and
  scintillator technologies.
• All proponents are working towards exposing their
  prototypes to a test beam in the 2005-2006
  period.
• Expecting increased coordination between groups
  as the test beam becomes a reality.