Difference between revisions of "DAQ Testing/20190118"

Latest revision as of 19:05, 1 February 2019

January 15th, 2019 Testers: Cameron Clarke, Tao Ye, Bob, Paul King

Using batteries to look for pedestal noise floor, drift, or helicity correlated pickup

Run 1032 - failed
Run 1033 - Battery (1.6 V) plugged into RHRS first ADC, channel 7 (index 7, 8th channel) - 5300 events at 30 Hz flip rate, 500 us Tsettle time (scalers and synch monitor are now invalid - were set for 240 Hz and 160 us Tsettle timing)
- See plot of data with 50 ppm noise, and ~ 5 ppm noise event to event (note that to get the voltage, rather than a beam current normalized signal, you have to specify at run time in JAPAN not to normalize)
Run 1034 - Battery (1.6 V) plugged into RHRS second ADC, channel 4 - 5300 events (I may have accidentally moved lumi signal in channel 1 to 2, either way, its in 2 now)
Run 1035 - Battery (1.6 V) plugged into LHRS only ADC, channel 7 - 36000 events
After getting helped by Paul King, the command to analyze a run in Japan use:
- ~/pking/japan_altdevel/build_6.14/qwparity --config prex.conf --codafile-stem [stem] -r [number] --rootfile-stem [root file stem]
- Paul uses ~/pking/reset_env.csh to set his environment
Run 1036 - Battery (1.6 V) plugged into LHRS only ADC, channel 7 - over night high stats run: 1.6M events

Paul King helped create a 4 crate map.

We decided to make map files based on detector type
The blindable detectors will be one type of class (MollerDet) and the lumis get their own class, as do scalers
We added Prex Tandem, At, Scalers, and SAMs to the detector maps, and got all but scalers to work
- Got the scalers to work by fixing a typo - we were able to successfully recreate Tao's plots from pevious testing
Unfortunately, with going back to 1000 run number it messes with the run-number agnostic map in Japan
- Resolved by changing the $QW_DATA directory to somewhere else with a link to .dat files of interest in it
The old pan header words are not being properly skipped over by Japan, so a workaround (similar to the one already done for "beamline" maps) must be implemented for all banks
- Updates were made to the Moller and Lumi classes to allow these header words to be skipped.
We now have a fully functioning Japan that can analyze all crates - currently assumes where the SAMs, Prex and At detectors will be

@@ Line 16: / Line 16: @@
 * Run 1032 - failed
 * Run 1033 - Battery (1.6 V) plugged into RHRS first ADC, channel 7 (index 7, 8th channel) - 5300 events at 30 Hz flip rate, 500 us Tsettle time (scalers and synch monitor are now invalid - were set for 240 Hz and 160 us Tsettle timing)
-** See [[:Media:Battery_RHRS_0_7_5k.pdf|plot]] of data with 50 ppm noise, and ~ 5 ppm noise event to event
+** See [[:Media:Battery_RHRS_0_7_5k.pdf|plot]] of data with 50 ppm noise, and ~ 5 ppm noise event to event (note that to get the voltage, rather than a beam current normalized signal, you have to specify at run time in JAPAN not to normalize)
 * Run 1034 - Battery (1.6 V) plugged into RHRS second ADC, channel 4 - 5300 events (I may have accidentally moved lumi signal in channel 1 to 2, either way, its in 2 now)
 * Run 1035 - Battery (1.6 V) plugged into LHRS only ADC, channel 7 - 36000 events