The Big Family Readiness Review 1 st Run Period: Threshold Pion Production 2 nd Run Period:...
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Transcript of The Big Family Readiness Review 1 st Run Period: Threshold Pion Production 2 nd Run Period:...
The Big Family Readiness Review
1st Run Period: Threshold Pion Production2nd Run Period: Transversity & d2n3rd Run Period: Ay & 3He(e,e’d)
“Why are we having this review?”- John Domingo
E04-007: Threshold Pion Production
• Left HRS @ 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
E06-010 & 11: Transversity• Left HRS @ 16 - 75 (S1, S2M, A1, RICH, Gas Cherenkov, Pion
Rejector)
• BigBite @ 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
E06-014: d2n• Left HRS @ 30 - 70 (S1, S2M, A1, Gas Cherenkov,
Pion Rejector)
• BigBite @ 45 with Electron Package – detectors the same as Transverity
• Polarized 3He Target System– change to in-plane polarization
E05-015: Ay
• The Big Hop (Left HRS and BigBite Trade Places)
• Left HRS @12.5 - 20 with Negative Polarity• Right HRS @12.5 - 20 with Negative Polarity• BigBite with neutron detector for testing @ large angle
• Polarized 3He Target System– nominal exit beam-line
E05-102: 3He(e,e’d)
• Left HRS @ 15- X with Negative Polarity• Right HRS @ 12.5 with Negative Polarity• BigBite with Hadron Package & Hall A Neutron Detector @ 70– system check during E05-015
• Polarized 3He Target System
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,e’d) Experiments (The Big
Hop)
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