Difference between revisions of "04-9-2015"
| Line 17: | Line 17: | ||
Both PMT HV were set to 1100 volts and the LED threshold was at 20 mV | Both PMT HV were set to 1100 volts and the LED threshold was at 20 mV | ||
| − | ==run 4518 | + | ==run 4518 terminators in== |
Run 4518 had the bottom PMT of Detector 4 as the trigger and the terminators in. | Run 4518 had the bottom PMT of Detector 4 as the trigger and the terminators in. | ||
| Line 26: | Line 26: | ||
R1DC->Draw("(evt.TDC1190[1][2]-evt.TDC1190[2][2])/10>>(4096,-4096,4096)" | R1DC->Draw("(evt.TDC1190[1][2]-evt.TDC1190[2][2])/10>>(4096,-4096,4096)" | ||
| − | ==run 4519 | + | ==run 4519 terminators out== |
Run 4519 had the bottom PMT of Detector 4 as the trigger and the terminators out. | Run 4519 had the bottom PMT of Detector 4 as the trigger and the terminators out. | ||
| Line 32: | Line 32: | ||
The TOP PMT DID have mutliple peaks | The TOP PMT DID have mutliple peaks | ||
| + | [[File:r4519_Det4Top_1-2hitdiff.png| 200 px]] | ||
[[2nCor_44#Run_Plan]] | [[2nCor_44#Run_Plan]] | ||
Revision as of 17:09, 10 April 2015
I did some TDC ring tests on Detector 4 by adding a 50 Ohm pass through terminator on the base of the top detector and another pass through terminator at the exit of the patch pannel
I needed recommission the DAQ TDC logic which seems to have become unplugged.
I added connectors so TDC1190[6] would have two hits separated by 400 ns
replay the data on daq2 with the command
CODA/CODAreader/ROOT_V5.30/R1DC/evio2nt -fr4516.dat > /dev/null
R1DC->Draw("(evt.TDC1190[1][3])");
R1DC->Draw("(evt.TDC1190[1][6]-evt.TDC1190[2][6])/10>>(4096,-4096,4096));
Both PMT HV were set to 1100 volts and the LED threshold was at 20 mV
run 4518 terminators in
Run 4518 had the bottom PMT of Detector 4 as the trigger and the terminators in.
The TOP PMT did not have mutliple peaks
R1DC->Draw("(evt.TDC1190[1][3]-evt.TDC1190[2][3])/10>>(4096,-4096,4096)");
R1DC->Draw("(evt.TDC1190[1][2]-evt.TDC1190[2][2])/10>>(4096,-4096,4096)"
run 4519 terminators out
Run 4519 had the bottom PMT of Detector 4 as the trigger and the terminators out.
The TOP PMT DID have mutliple peaks
