HRS Detector Calibrations

From Hall A Wiki
Revision as of 13:42, 14 October 2014 by Vasulk (Talk | contribs)

Jump to: navigation, search
  • Use 12C "white" spectra to get maximum coverage of planes, take 250K events.
Ebeam [GeV] P0 [GeV/c] θe [deg] Collimator Target Fast Raster
X x Y
Beam Current Trigger
7.3 3.056 19.0 None Optics Carbon 1 mm x 1 mm 20μA S0&&S2m
  1. Check the timing and calibration constants (shower ADC gains, pedestals, timing offsets, pulse height corrections, attenuation lengths, efficiencies, position dependencies).
  2. VDCs and Straw Chambers (Yang Wang)
    * Fit for new time-to-distance map
    * Look at drift time spectra, is the shape reasonable? in the right time range?
    * Look at focal plane distributions.
    * Check fiducial tracking efficiency, is it > 95%, If not, then check TDC windows and tracking parameters.
  3. HRS Scintillators (Barak Schmookler)
    * Look at all channels, compare against standard histograms.
    * Are any channels firing at high rate (possible light leak)?