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TP Calorimetry. Jaewon Park. Full Minerva Detector. Full Minerva Detector. Full Minerva Detector. TP Detector. TP Detector. TP Detector. TP Detector. TP Detector. Ecal calibration constant. Old study showed Ecal calibration constant 2.5 is better than 1.5
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TP Calorimetry Jaewon Park
Ecal calibration constant • Old study showed Ecal calibration constant 2.5 is better than 1.5 • Mean of (recoE-trueE)/trueE become constant for theta, Vz depedence • Value 1.5 is from dE/dx weighting. K_ecal=2.5 K_ecal=1.5 K_ecal=1.75
Ecal calibration constant K_ecal=2.5 K_ecal=1.5 K_ecal=1.75
Nu_e electron energy (k_ecal=2.5) • When electron track is reconstructed.
Fake ADC -- Scan Time • 10000 adc hit for 120 sec (rate=~83 adc/s) • This is the rate in manual taken data. • Nominal pedestal position=371 • Nominal pedestal sigma=10 • nADC = rate*scanTime • Fill Gaus(371+Shift,sigma) nADC times. • Two pedestal histogram (PedA, PedB) are made with Gaus(371,sigma) • No photoelectron ADC, just pedestal • No systematic error • No strip-to-strip variation • No electronics channel-to-channel variation
12s 120s 0.6s
120 sec pedA pedB
0.6 sec pedA pedB