BigBite Optics et cetera #20

In order to be able to find the matrix elements for the TgDelta variable, we decided first to calibrate ADCs and TDCs in the E and dE planes. This will allow us to apply additional cuts and precisely select events that will then be used for the final calibration of the TgY.

I have started calibration by comparing gains from Left and Right PMT on each paddle. I have written a code that automatically finds relative correction factors for Right PMT, so that the gains in both PMTs match. I have also plotted the difference in ADC signals when we move left or right from the center of the paddle. Here are some of the results for dE and E plane.

dE-plane Results: Paddle #12

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E-plane Results: Paddle #12

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Last modified: 09/08/10