Phone Call 2015-04-23

Analysis phone call, 15:00 BST, Thursday 23rd April 2015.

For those at RAL we will be in the POD.

Phone Details


  • ACTION (Pasternak/Rogers): determine magnetic settings routine - do we imagine "equivalent coil"? Implement iron in MAUS? Run everything through OPERA?
    • By email, preliminary analysis indicates simple scaling should do the job; there may be some measurable asymmetry; Holge to make a presentation in due course
  • ACTION (Pasternak/Rogers): determine standard magnetic settings for commissioning e.g. magnet currents for 420 mm beta in solenoid mode
    • move to agenda
  • ACTION (Pasternak/Rogers): determine standard beamline settings
    • move to agenda
  • ACTION (Rogers): Xboa specification document
    • Cover in xboa item on agenda
  • ACTION (Rogers): Bring in Dobbs MAUS analysis framework to xboa?
  • ACTION (Rogers/Rajaram/Blackmore): Official plots and publications pages
    • Done
  • ACTION (Rogers): Set the desired number of good muons following trigger revamp/what are the aims/scope?
    • Move to agenda
  • ACTION (Rogers): Redo trigger/data rate analysis with optimised beamline
    • Move to agenda
  • ACTION (Rogers): Redo trigger/data rate analysis with better transverse cut
    • Move to agenda
  • ACTION (Rogers): Check momentum spread/momentum cut effects (what happens to the beam if we make a bigger momentum spread)
    • Move to agenda
  • ACTION (Rogers): Look at TOF2 trigger effect on analysis (e.g. what are the consequences if we trigger downstream of the experiment on rate?
    • Move to agenda
  • ACTION (Rogers): Determine effect of increased dip depth in ISIS (e.g. what are the consequences if we take more particles into the experiment? does it help?)
    • Move to agenda
  • ACTION (Rogers): Tolerances - in light of magnet mapping activity, formalise tolerances on magnet alignment
    • Not relevant/too late to do anything - reject action
  • ACTION (Rogers): Tolerances - controls people ask what are the tolerances on magnet current

RLSR/MPB Actions

  • ACTION (Rajaram/Rogers): Investigate as a matter of urgency technical means to optimize the trigger efficiency for ‘good’ muons, and remove dataflow bottlenecks before the Step IV run.
    • Move to agenda
  • ACTION (Rogers): Plan and execute a blind ‘physics analysis challenge’ in order to ensure the readiness of the whole collaboration for data analysis, early in 2015.
    • Done
  • ACTION (Pasternak): Ensure optimization of the beamline settings in order to preserve matching at the entrance of the ionization channel and potentially increase the number of ‘good’ muons, during the Step IV run.
    • Duplicate of action above
  • ACTION (Boyd): Include a set of measurements in a configuration with large beta functions in Step IV data taking, in order to validate the muon tracking tools for trajectories with large displacements passing through nonlinear magnetic fields, and to explore the size of the cooling system apertures.
    • Move to agenda

Actions following Run planning meeting

  • ACTION (Uchida): Improve analysis of tracker alignment in context of residual fields; improve estimate of magnitude of effect, degaussing procedure, use of beam momentum to constrain the residual fields effect.
    • Cover in agenda
  • ACTION (Rogers): Arrange run planning review at the beginning of May
    • Now owned by Steve Boyd and operations
  • ACTION (Rogers): Add contingency
    • Done, version 2 of the note is available
  • ACTION (Nugent): Estimate data rate with cooling channel magnets off
    • Still waiting on good April data - this weekend?


  • Actions
  • Issues Arising
  • Physics shifts - volunteers needed!
  • Field Mapping (Victoria Blackmore)
  • Step IV Technical Paper
    • Beamline (Jaroslaw Pasternak)
    • Detectors (Melissa Uchida)
      • Alignment Measurement
      • Efficiency
      • Residuals
    • Particle ID (Celeste Pidcott)
    • Measurement of magnetic alignment (Chris Rogers)
    • Quality of transported beam (Chris Hunt)
  • Step IV First Demonstration of Cooling (Chris Rogers)
  • Step I Papers (Victoria Blackmore)
    • EMR paper
    • Pion contamination
  • MICE Demonstration of Ionisation Cooling (Jaroslaw Pasternak)
    • Lattice close out by CM41; paper first revision soon afterwards
  • Magnetics
  • Absorber and material physics
    • Scattering measurement
    • Energy loss measurement
  • Support
    • Batch Production (Ryan Bayes)
    • X-BOA (Chris Rogers)
    • Online Analysis Tool (Chris Rogers)
    • Trigger analysis (Chris Rogers)
  • Date of next meeting
    • April 30th, if required
    • (May 6th, VC)
    • May 14th
    • May 28th
    • June 11th
    • (CM 42: June 22-24) - we may want to have an analysis workshop around the CM

Updated by Rogers, Chris about 9 years ago · 20 revisions