BigBite dE-plane TDC calibration:

This week I finished the dE-plane TDC calibration. For the calibration I used the same approach as I did for the E-plane TDC calibration. In order to do so, I had to consider only events without hit in E-plane (Ndata.DL.t1==0). This way T2 trigger was the "main" BB trigger and consequently TDCs in dE-plane were sharp. In process of calibration I fixed one of the channels (L,R) to T = -370ns, The offsets for the other channel were determined from the L-R calibration. I adjusted the offsets in a way, that (L-R)(y = 0) = 0. Here are the results of my calibration:

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I also determined mean speed-of-light and R-Y offset in dE-plane scintillator. Here are the results:

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EVe - new version

I made some modifications and improvements to EVe. The new EVe shows also deposited charge in E- and dE-plane. In addition, it also displays a "full" track, represented by a line. The purpose of this is to guide an eye. This way can user connect MWDC track to E/dE hit much faster. Here are some screen shots of the new EVe.

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Last modified: 02/09/11