2016-07-21-optics¶

Thursday 21st July 15:00 BST; we will be in the MICE meeting room in R1.

Phone Details¶

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

Agenda¶

• Status of data taking
  • Physics shifter for this weekend?
• Field mapping and theoretical magnets, effects of iron (Victoria/John Cobb/Jo Langlands)
• Transfer matrix and magnet alignment 2016-07-21_fc-alignment.pdf (Sophie/Chris Rogers)
• Beamline
  • Optics of pionic beamline (Paolo)
    • Dipole field measurement?
  • Target simulation (Ao)
• Step IV Optics (Ao Liu)
  • Validation of optics model
  • Emittance/cooling simulation (Francois)
• Algorithm to calculate the phase space volume (vs RMS emittance) (Tanaz Mohayai/Chris Rogers)
• Demonstration of Ionisation Cooling paper (Jaroslaw/JB Lagrange)
• AOB
• Date of Next Meeting
  • Thursday 28th July is Collaboration meeting
  • Thursday 4th August
  • Thursday 11th August

Notes¶

Melissa
Scott B
Ao Liu
Dave Neuffer
Paolo
Victoria
Tanaz

Paolo, Ao volunteer to watch data

Rogers:

• Should require 5 space points per tracker on the PRStraightTrack
• Should require 15 track points per tracker
• Add TKU radial plot

Paolo:

• Note first slide - dependence between TOF0/TOF1 triggers is inverted
• Second slide - lots of worry about statistical noise; hysteresis? beamline stability?
• Check the reference runs for consistency
• Check the alarm handler settings - where is the alarm limit for the conventional magnets; are CDB set values consistent with alarm limit

Tanaz:

• Still see big spike at the M2D coil
• Remove M2D
• Remove trackers
  Note that it is consistent with z position of transmission loss; nonetheless not improved