Gain curves from 01/26 LED data
Updated on Fri, 2013-01-11 20:42. Originally created by yuxip on 2011-01-20 15:25.
Following are the gain curves from LED runs that we took on Jan.26th.
Conditions: Magnet Full Field Polarity B, DX Current = 145 A (injection)
LED ADC =255 3Hz. FMStest_cl setup Th1~40-75 for both large/small cells
About 1000 events in each run.
One of the things I did when plotting ADC spectrum is that I made a cut on sumADC of one of the four nstb modules( as can be seen on the event display). By doing so,hopefully I can get rid of the lower peaks for most of the cells
figure 1. (run12016005 sumADCcut: nstb2>500k)
The curves are fiited to MeanADC=exp(a*(HV^2)+b*(HV)+c) accroding to Jingguo's parameterization.
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