Tue Nov 01, 2016: DAY Shift

From Hall A Wiki
Revision as of 19:57, 30 October 2016 by Cornejo (Talk | contribs)

Jump to: navigation, search

Return to List of Daily Run Plans

Shift Duties

  • Setup Compton
    • Compton experts will come in to setup beam through the Compton Chicane.
  • Take Production data ```except during Compton Setup
  • Log all issues, alarms and questions.
  • Perform shift checklist.
  • Log target status twice per shift.

Production Running

Take 1 hour runs for both Left HRS DAQ and Right HRS DAQ. Follow Kinematic settings for DVCS Kin_36_2 and GMp 4th Pass "Parasitic" Kinematics, summarized below:

Beam current 10 μA
Beam Energy 8.5 GeV
Target LH2 (Loop 2)
Raster ON (2x2mm2) [MCC units h=2, w=3]
VDC HV (both arms) ON

DVCS Kin_36_2

DVCS Calo Angle 11.635°
DVCS Calo Distance 2.0 m
LHRS Polarity Negative
LHRS Momentum 3.187 GeV/c
LHRS Angle 20.985°
LHRS Q1 Current 664.78 Amps (regulator OFF)
prescaleL PS9=1 (all others zero)

GMp 4th Pass "Parasitic" Kinematics

RHRS Polarity Negative
RHRS Momentum 1.804 GeV/c
RHRS Angle 53.475°
RHRS DAQ Config RHRSadaq2
prescaleR PS1=PS2=PS3=1, && PS8=200 (all others zero)