20160311EB-Physics¶

• The final Step I paper has been published by JINST

• Measurement of beam emittance (Victoria Blackmore)
  • We have understanding of every phase of the analysis
  • We have (incomplete) plots for most phases of the analysis
    • Missing: projection of TKU to TOF1
    • Missing: Monte Carlo
  • VB is tying it together in a MICE note

• Multiple Coulomb Scattering (John Nugent)
  • Understand main phases of the analysis
  • Two-step data unfolding procedure;
    • untangle angle-dependent detector effects/background
    • compare with empty data and remove effects of empty absorber
  • First step is working
  • Second step is ongoing

• Beam-based alignment of detectors (Francois Drielsma)
  • x, y, x', y' alignment is complete
  • Additional analysis to understand the roll

• Transfer matrix alignment of magnets (Sophie Middleton)
  • Identified an additional source of systematic due to intrinsic detector resolution
  • Using MC to remove this bias

• Step IV planning (Ao Liu)
  • Optics solutions for FC2, M2 + ECE in SSD
  • Optics solutions for FC2 + ECE in SSD
    • performance looks marginal for direct measurement of emittance reduction
  • Working out optics solutions for FC1 (in flip mode, we like high current in FC)

• Filamentation studies
  • Tesselation of phase space - looks challenging to achieve required statistics and resolutions (C. Rogers)
  • Investigating Kernel Density Estimation (smooth the beam distribution using Gaussian filter) (T. Mohayai)

• Pionic beamline (Jan Greis)
  • Investigate using a pion beamline for the cooling measurement
  • MC indicates a factor 2 enhancement of rate, but note uncertainty on the pion production model
  • Also note uncertainty on PID capabilities
  • Data taking ongoing to normalise/validate MC