Cosmics Tests (04/12/09)

Run #1072 - Run with trigger T7 only

For these runs we have put a small scintilation plane in front of the E plane, over bars #19, #20, #21. The signal from this this scint. plane was used as a Cosmics trigger (T7) in the following runs. Because of that we get ADC signals only in these three scint. paddles.



Run #1075 - Run with trigger T7 only

Run #1073 - Run with triggers T1,T2 and T7

Run #1076 - Run with triggers T1,T2 and T7

EVe Pictures:

Run #1072:



Run #1073:

Scope pictures:

Gate and corresponding signal in the input to ADCs when T1 or T2 is triggered. The analog signal comes approximately 25ns after the gate opens.


Gate and corresponding signal in the input to ADCs when T7 is triggered. The analog signal comes approximately 8ns after the gate opens. THIS IS NOT GOOD!!!


Time difference between the cosmics trigger and (T1Delayed+T2)Delayed signal is approximately 350ns.


Time difference between the DELAYED cosmics trigger and (T1Delayed+T2)Delayed signal is approximately 350ns.


Trigger T2 comes approximately 84ns after the T1:


Time difference between the discriminated signal after the discriminator (to TDC) and analog signal to the ADC E-24L:


Time difference between the discriminated signals (on the output from the discriminator) from E-24L and E-24R PMTs:


Time difference between the T1 and analog signal from E-plane (that caused trigger) to the ADC is 110ns:


Time difference between the T1 and analog signal from E-plane (that caused trigger) to the ADC is 188ns:


Time difference between the (T1Delayed + T2) and L1A:


Time difference between the delayed T1 and analog signal from E-plane (that caused trigger) to the ADC is 188ns:


Time difference between the T7 and L1A:


Last modified on: 04/12/09