Difference between revisions of "September 7, 2011"

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=Pair-spectrometer threshold calibration with beam=
 
=Pair-spectrometer threshold calibration with beam=
==Beam On. Swip Off. Collimator On.==
+
==Using counter. Beam On. Swip Off. Collimator On.==
  
 
[[File:Thresh upstream beam collim 090711.png || 600px]] [[File:Thresh downstream beam collim 090711.png || 600px]]
 
[[File:Thresh upstream beam collim 090711.png || 600px]] [[File:Thresh downstream beam collim 090711.png || 600px]]
  
  
==Beam On. Swip On. Collimator Off.==
+
==Using counter. Beam On. Swip On. Collimator Off.==
  
 
  was not done
 
  was not done
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==using TDC to count PS pulses. 10,000 beam pulses==
+
==Ssing TDC to count PS pulses (10,000 beam pulses).  Beam On. Swip Off. Collimator On.==
  
  
 
[[File:Thresh downstream beam collim TDCdata 090711.png | 600px]]
 
[[File:Thresh downstream beam collim TDCdata 090711.png | 600px]]

Revision as of 18:38, 7 September 2011

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Wednesday Run Plan

  • Tune up beam
  • During this time, as much as possible tune up daq timing
  • Kicker magnet calibration with viewscreen
  • Pair spectrometer checkout/debugging
    This should include setting thresholds, studying rates with air converter, looking at rates with photon hole open
     versus blocked, ...
  • Check detector rates with D2O. See if we can get a good time of flight spectrum.


Kicker magnet calibration with viewscreen

Pair-spectrometer threshold calibration with beam

Using counter. Beam On. Swip Off. Collimator On.

Thresh upstream beam collim 090711.png Thresh downstream beam collim 090711.png


Using counter. Beam On. Swip On. Collimator Off.

was not done


Ssing TDC to count PS pulses (10,000 beam pulses). Beam On. Swip Off. Collimator On.

Thresh downstream beam collim TDCdata 090711.png