Master Plan

• Proton Energy Spectrum

  • Transfer Function [Nam]

    AE: Is this just the energy loss of the protons coming out of the stopping target?
    JQ: Yes

  • Active target pileup separation [Ben K]

    • Tail-to-total, elog:166
    • Pulse templates

  • dE vs E

    • Si thick/thin pairing
      • Timing between thick/thin
      • Fast/Slow pairing
        • Timing resolution between fast/slow
        • Number unpaired fast/slow
          • Function of timing [Ben K / John Q]
          • Function of energy [Ben K / John Q]
        • TDetectorPulse code
        • Energy for fast vs energy of slow
        • Timing of fast vs timing of slow
      • Number unpaired thick/thin
        • Function of timing
        • Function of energy
    • Energy calibration [Ben K]
      • Code to load
      • How to implement

• Monte Carlo

  • Geometry

    • Code to switch between setups (done)
    • Decide location for NDet for next run
    • Where do muons stop? [Nam]

  • Tolerances [Andy E]

    AE: What are we looking at as output here? Just the change in the number of protons?

    • Angle and position of target
    • Angle and position of silicon
    • Angle and position of germanium
    • Angle and position of liquid scintillators

    RPL: I think for a first attempt it will suffice just to move the target about, in order to get feel for the size of the effects. I suggest we move the target 1cm forward/back and left/right [the post-run alignment survey suggested ~2cm IIRC] and rotate it CW/CCW around the vertical by ~arctan(1cm/6cm) ~ 10 degrees. If it is quick we could do additional points at 2x or .5x that size &/or combinations.

  • Efficiency

    • Acceptance of Si
    • Acceptance of Ge (already done)
    • Acceptance of NDets [Damien A]
    • Particle ID cuts [Nam]
    • Muon veto efficiency
    • (AE: Any others?)

  • Timing

    • TDiff

  • Energy

    • E distributions

• Germanium Spectrum

  • Timing with muSc (offset, resolution) [John Q]
  • Timing with active target (offset, resolution)
  • Energy resolution and efficiency [John Q]
    • Calibration runs (how good is the fit to eff/energy) [John Q]
    • Best energy method
  • Gain drift [John Q]
    • Run-by-run fix [John Q]
    • Drift per run [John Q]
  • Identify peaks [John Q]
  • Muon counting [Nam]
    • Compare to active target (partially done)
    • Compare to MC (partially)

• Neutron Spectrum [Damien A, Daniel A]

  • Total rate
  • Design for next run

• Stopped muons [Ben K]

  Ben K: I'd like to look at this once the energy calibration is done, though would be happy to work alongside someone else. I'll use the muon centred tree I think unless there are other ways to do this that people can think of. The MuPC data probably needs adding, which will require a rerun of alcapana and I believe Peter W is looking into.

  • Want MuPC data added -> Need to rerun alcapana
  • Percent punch through
  • Rate of stops in arms
  • Veto counter efficiency
  • MuScA efficiency
  • Active target

• Look at beam (momentum) tune runs to calibrate stopping depth [Andy E]

  • Can we deduce the stopping depth from this data?
    • In principle:
      • Identify near-surface stop mometnta from front back by overall rates
      • L-R comparison then gives energy loss for near-full thickness
      • Identify centre point by L-R equality.
    • In practice it may not be that simple...

• Beam Off / Target out / Positive muon background runs