PC-2015-08-13¶

Phone Details¶

http://mice.iit.edu/phonebridge.html

Actions¶

• ACTION (Pasternak/Rogers): determine magnetic settings routine - do we imagine "equivalent coil"? Implement iron in MAUS? Run everything through OPERA?
• ACTION (Rogers): Tolerances - controls people ask what are the tolerances on magnet current
• ACTION (Rogers): EMR is misaligned by 10 cm; what is the implication for cooling channel acceptance

RLSR/MPB Actions¶

• ACTION Rogers: Report, in a MICE note to the collaboration, the definitions and methods used for the determination of the betatron functions and emittances.
• ACTION Rogers: Carry out an independent review of the beam dynamics analysis

Agenda¶

• Actions
• Issues Arising
  • 2015/02 planning
• Physics shifts - volunteers needed!
• Field Mapping (Victoria Blackmore)
• Step IV Technical Paper
  • MICE Muon Beamline (Jaroslaw Pasternak)
    • #1730, initial analysis of TOF0 intensity study, runs 6715--6729 (V. Blackmore)
  • 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)
• Magnetics
  • Non-linear beam optics/measurement(Rob Ryne)
• Absorber and material physics
  • Scattering measurement (Celeste/John N)
  • Energy loss measurement (Rhys/Dimtrije)
  • Beam (de)polarisation
• Support
  • Batch Production (Ryan Bayes)
  • X-BOA (Chris Rogers)
  • Online Analysis Tool (Chris Rogers)
  • Trigger analysis (Chris Rogers)
• Date of next meeting
  • July 23rd
  • July 30th
  • August 6th is a Video Conference week
  • August 13th

Notes¶

Scott Wilbur
Tanaz Mohayai
Pavel Snopok
Celeste Pidcott
Victoria Blackmore
Paul Kyberd
Chris Rogers
Chris Hunt
Ryan Bayes
Jan Greis

Tolerances (Rogers)

• Blackmore asks; how much does beta change over the length of the absorber?
• Rogers notes; additional constraint should be quality of matching from tracker to EMR

Beamline (Blackmore)

• Present u/s beamline looks optimal
• Distribution is fixed, can only make the rate worse

Detector alignment (Hunt)

• Looks like the tracker planes are in the wrong order at some point in the reconstruction chain; Hunt has fixed
• Corrected alignment numbers are out in the issue tracker #1696

Magnet alignment (Rogers)

• Another round of analysis has been performed
• Still wip

PID (Pidcott)

• Looking at PID on 7157; track matching is failing
• Jan: Possibly needs scattering and dEdx? Possibly a "using legacy geometry" issue?
• Blackmore: Possibly worry about particles clipping edge of diffuser

Physics Devil (Wilbur)

• Couple of modifications to physics devil; added time stamps, separate html page for each run, detector efficiencies; uploaded in the next couple of days

Rate Analysis (Hunt)

• First pass analysis done
• Need to remove cuts based on downstream detectors; we are only interested in upstream detectors