CPP and NPP Run Conditions

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  • CPP and NPP Run Conditions
  • Electron beam energy expected = 11.7 GeV based on the planned Experimental Schedule
  • Microscope will cover the range of [0.301-0.514] of the beam energy or [4.57-6.01 GeV]
  • Pair Spectrometer magnet will be scaled down by 6/9 = 0.67 of its nominal field (??)
Time estimates for Run Plan
Activity Duration (PAC Days) Current Target Collimator Radiator Comment
Full target (Production) 20 27 nA Pb (0.3 mm) 3.4 mm JD70-103 or JD70-107 Alternate 0/90 deg diamond configuration
Empty Target 1.5? 27 nA - 3.4 mm JD70-103 or JD70-107 Run at higher current?
Diamond Alignment 0.5? 20 nA? Pb (0.3 mm) 3.4 mm JD70-103 and JD70-107
Trigger Commissioning 1.3? 100 nA? Pb (0.3 mm) 3.4 mm JD70-103 or JD70-107
Lead Shield Alignment 0.1? 100 nA? Pb (0.3 mm) 3.4 mm JD70-103 or JD70-107
Beam Energy Calibration 0.1? 100 nA Pb (0.3 mm) 3.4 mm JD70-103 or JD70-107 Collimator Blocking for 5 min, periodically
TAC Runs 1.5? <2 nA - 3.4 mm AMO (2x10-5)