September 7, 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.

Pair-spectrometer threshold calibration with beam

Beam On. Swip Off. Collimator On.

Beam On. Swip On. Collimator Off.

was not done

using TDC to count detector pulses. 10,000 beam pulses