04-20-2015

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Started testing detector 4 again.

Fake stop time

Discriminator width was decreased from 40 ns to

Discrimniator threshold is set to 100 mv

The delay for the fake stop is set to 800 ns


FakeStop 4-20-2015 A.png

Below is a picture of the typical 400 ns fake stop pulse that should appear as a second hit in the Multihit TDC.


FakeStop 4-20-2015 B.png


CODA/CODAreader/ROOT_V5.30/R1DC/evio2nt -fr4516.dat > /dev/null


R1DC->Draw("(evt.TDC1190[1][6]-evt.TDC1190[2][6])/10>>(4096,-4096,4096)");

Run 4534

R4534FakeStop C.png

Now increase delay of fake stop to 800 ns

200 px

Terminator test

r4534

Terminators in

Discriminator at 20 mv

PMT detector #4 HV at -1000 Volts


2nCor_44#Run_Plan