MOLLER Commissioning Task List

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Alignment Tast Force

Commissioning Task List

Format: Required beam condition, followed by a list of commissioning tasks, which may include additional notes regarding requirements

• Low current (variously, about 1nA up to 50 nA)
  • Full energy (5 pass, 11 GeV)
    • Test Collimator 2 alignment: measurement of line-of-sight shadow with scanner
    • MOLLER Beam Trajectory Determination Procedure (developed by Alignment Working Group)
      • Ideal trajectory without field - Check Collimator 2 center
      • Collimator 1 Center Search
      • Field on, check beam trajectory, check magnetic axis
      • Check rate modulation in GEMs, validation of physics requirements
    • First Tracking chamber calibration: data for internal alignment of chambers using scattered tracks
      • Might include multiple positions and tests of repeatability
  • 1 pass (2.2 GeV)
    • Test magnet alignment: measure deflection of beam on dump viewer when energizing each magnet individually