We start to work on the FGT cosmic ray test. We use the two scintillator counters borrowed from IU as our cosmic ray trigger.
Fig1, trigger setup.

Fig2, the signal of the scintillator (top).

Fig3, the signal of the scintillator (bottom).

Fig4, trigger readout. The yellow curve shows the coincidence trigger of the discriminator output of the two scintillator, and the blue distribution shows the discriminator out of one scintillator.

We have the trigger working for the FGT cosmic ray test.