Run 0236211846 LAC_MidPos Temperature 11-15 C

2d histogram NEG_FACE signal vs POS_FACE signal - threshold exist only on positive side - demonstrates that MidPos configuration is correct

 

LAC POS thresholds

The mean value is peaked at 4 MeV. The temperatures appear not to be uniform across the CALs.

LAC distribution per CDE

There are a few outliers in the distribution. The four extreme ones are:

;twr lyr col face lac errlac pedDrift lacMeV fitstat chi2 mev_slope mev_offset
15 2 6 0 148.777 0.545897 -2.81275 4.83631 0 119.418 0.031904 0
0 0 9 0 90.418 0.457961 -6.89924 3 0 77.4273 0.030827 0
2 5 2 0 93.6192 0.351582 -7.67663 3.12812 0 62.7175 0.030881 0
5 3 9 0 101 0.434716 -3.64904 3.1987 0 80.0416 0.030566 0

The LAC is well-defined, with sufficient statistics, so the threshold is real and might need to be corrected.

Pedestal drifts

File with the LAC/Pedestal values