Previous Logbook

27-09-2017

• Baseline Analysis,
  • Initially performed my own baseline extraction in order to learn a few things about the raw TFile structure
  • Rewrote the same analysis in the space of a few hours using the dmtpc framework
• Process is to,
  • Extract the baseline from every trace and push it into a histogram for each channel
  • Fit gaussian/find RMT and define a cut of accepting only waveforms that have a baseline within 8sigma
  • Remove whole events that do not make the cut, Replot and refit.
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• Pulse height analysis
  • dmtpc framework is mostly defined in Pulse.hh (for anyone who is interested)
  • The getPeak() function extracts the peak and subtracts for baseline offset
  • Further acceptance can be performed based on getPeakTime()
  • Code (and a tutorial on what each part of my macro is doing what has been passed down to Adriana for further modification/development (getPeakTime() cuts which shouldn't take much development
  • Currently my analysis works only one a single file though it should be realitively simple to make it work on a string of files.
  • Quite slow... might concider a compiled version rather than a macro, shakes fist at CINT
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• Friday - Adriana and I did a full vacuum system and DMTPC operations tutorial,
  • Made modification to HV feedthrough, changing the connection type to a push on one
  • Applied Kapton insulation over any bare wire, the push on connector and length of the pin.
  • Proved the HV feedthrough operates up to the full capacity of the supply (8kV) in Nitrogen, no sparks or issues
  • Evacuuated vessel
• Started Testing performance of the Cremat boards, Initially tests look like boards are healthy, but we have devised a full set of tests to be performed in order to check board health and operation of different Amps in each
• Should be completed in next couple of days, if all checks are good we move onto the grounding and backfill the detector for sample runs