Difference between revisions of "Signal cable timing"
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[[2nCor Equipment#2016-2017 IAC run on the 44 machine | Go back]] | [[2nCor Equipment#2016-2017 IAC run on the 44 machine | Go back]] | ||
| − | + | ==Procedure== | |
PMT timing relative to D30T001 is measured by splitting a pulse from a pulse generator. | PMT timing relative to D30T001 is measured by splitting a pulse from a pulse generator. | ||
PMT top-bottom difference is the mean time difference of the PMT's using data from the TDC spectrum of a coincidence run with the CF-252 source. The source was placed in the center of all detectors and 150.5 cm above the floor. The trigger detector was located 5.5 cm below the very bottom of the source. | PMT top-bottom difference is the mean time difference of the PMT's using data from the TDC spectrum of a coincidence run with the CF-252 source. The source was placed in the center of all detectors and 150.5 cm above the floor. The trigger detector was located 5.5 cm below the very bottom of the source. | ||
| + | ==run info== | ||
| + | Detectors D30(Red) and D90(yellow): | ||
| + | run #5214 t=1475 seconds | ||
| + | |||
| + | ==Results== | ||
{| border="1" style="border: 4px solid black; border-collapse: collapse; padding: 5px; text-align: center " | {| border="1" style="border: 4px solid black; border-collapse: collapse; padding: 5px; text-align: center " | ||
! colspan="2"|Detector | ! colspan="2"|Detector | ||
Revision as of 21:59, 17 August 2016
Procedure
PMT timing relative to D30T001 is measured by splitting a pulse from a pulse generator.
PMT top-bottom difference is the mean time difference of the PMT's using data from the TDC spectrum of a coincidence run with the CF-252 source. The source was placed in the center of all detectors and 150.5 cm above the floor. The trigger detector was located 5.5 cm below the very bottom of the source.
run info
Detectors D30(Red) and D90(yellow):
run #5214 t=1475 seconds
Results
| Detector | PMT | sig. cable | relative to D30T001 [ns] | PMT bot - PMT top [ns] | |
|---|---|---|---|---|---|
| angle | color | ||||
| 30 | Red | Top | D30T001 | +0 (by definition) | +12.5 |
| Bot | D30B002 | +12.5 | |||
| 90 | Yellow | Top | D90T003 | +1 | +10.5 |
| Bot | D90B004 | +11.5 | |||
| 150 | Blue | Top | D150T005 | +1 | +13 |
| Bot | D150B006 | +14 | |||
| 225 | Wood | Top | D225T007 | -3 | +23 |
| Bot | D225B008 | +20 | |||
Trigger plugged into patch panel 223A15 : -8 ns