The%20Big%20Family%20Readiness%20Review

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The Big Family Readiness Review

• 1st Run Period Threshold Pion Production
• 2nd Run Period Transversity d2n
• 3rd Run Period Ay 3He(e,ed)

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Why are we having this review?- John Domingo
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E04-007 Threshold Pion Production

• Left HRS _at_ 12.5? - 50? Negative (Right Arm Not
  Required)
• Cryo-target 20 cm race track plus new 4 cm
  pancake target
• BigBite with Wirechamber Hadron Package (40? -
  60?)
• two wire-chambers (one upgraded)
• dE/E trigger scintillators
• updated frame cabling
• 4He Bag System

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E06-010 11 Transversity

• Left HRS _at_ 16? - 75? (S1, S2M, A1, RICH, Gas
  Cherenkov, Pion Rejector)
• BigBite _at_ 30? with Electron Package
• three wirechambers (two chambers from Hadron
  package)
• upgraded preshower shower (scope pending
  funding)
• new gas Cherenkov (critical for d2)
• GEN timing scintillators
• Polarized 3He Target System
• transverse field coils
• large diameter exit beam pipe
• Fastbus for Chamber Readout

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E06-014 d2n

• Left HRS _at_ 30? - 70? (S1, S2M, A1, Gas Cherenkov,
  Pion Rejector)
• BigBite _at_ 45? with Electron Package
• detectors the same as Transverity
• Polarized 3He Target System
• change to in-plane polarization

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E05-015 Ay

• The Big Hop (Left HRS and BigBite Trade Places)
• Left HRS _at_12.5? - 20? with Negative Polarity
• Right HRS _at_12.5? - 20? with Negative Polarity
• BigBite with neutron detector for testing _at_ large
  angle
• Polarized 3He Target System
• nominal exit beam-line

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E05-102 3He(e,ed)

• Left HRS _at_ 15?- X? with Negative Polarity
• Right HRS _at_ 12.5? with Negative Polarity
• BigBite with Hadron Package Hall A Neutron
  Detector _at_ 70?
• system check during E05-015
• Polarized 3He Target System

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Schedule and Milestones

• 2007-04 Group DAQ Layout Finished
• 2007-06 DAQ Completed and Tested
• 2007-07 Begin PreShower / Shower Upgrade
• Scope of Upgrade Still Pending Funding
• Project Defined By April 1st
• 2007-07 Install Chambers In Hadron Package
• 2007-09 Complete Hadron Package Testing
• 2007-10 Submit FY08 Requisitions For Transversity
  d2
• Local Construction Items
• Cherenkov Gas
• 2007-12 Complete Electron Package Testing
• Must Have Chambers Back In Hadron Package Before
  Christmas
• 2008-01 Install Threshold Pion Experiment
• 2008-03 Install Transversity d2n Experiments
• 2008-04 Complete Neutron Detector Veto
• 2008-07 Install Ay 3He(e,ed) Experiments (The
  Big Hop)

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