Update on s1 width cut #131
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After discussion on Monday, s1 width cut is re-designed to 99% quantile line.
pdeperio
approved these changes
Jan 10, 2018
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Wait, you're too fast. Why not a flat line at 300? Or 250? What are the events in the little 'bump' at low E and why do we want to keep them? |
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I think this bump is from after-pulses and looks good events, thus if we have a flat line cut, acceptance may have energy dependence. that's why I calculated 99% quantile line. For high energy events, afterpulse contribution is very small for 90% area width calculation, but not negligible in this energy region. |
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I can buy that. OK to merge from my side. |
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This is an example of waveform for those events in ER-band. You can clearly see afterpulse |
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After discussion on Monday, s1 width cut is re-designed to 99% quantile line. Cut line and acceptance for all the calibration data can be seen in this
note