Difference between revisions of "Taking MAIN detector Counting Run"
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* Take counting runs on both arms (LHRS and RHRS) atleast 200k events | * Take counting runs on both arms (LHRS and RHRS) atleast 200k events | ||
* To analyze the runs: | * To analyze the runs: | ||
| − | ** ssh -Y a-onl@ | + | ** ssh -Y a-onl@aonl1 |
** goprex | ** goprex | ||
** analyzer -l | ** analyzer -l | ||
** .x setup2.C(runnumber,200000) | ** .x setup2.C(runnumber,200000) | ||
* When you are done with taking counting data '''turn OFF''' the '''DN-Quartz (MAIN) detectors HVs''' | * When you are done with taking counting data '''turn OFF''' the '''DN-Quartz (MAIN) detectors HVs''' | ||
| − | * For safety, set their HV to production level at the end | + | *'''NOTE:''' never turn ON '''DN-Quartz''' HVs during high current production running keeping them at higher HV (they will die) |
| + | * For safety, set their HV to production level (~900V) at the end | ||
| + | * To produce plots: | ||
| + | ** In a-onl@aonl1 machine: | ||
| + | ** cd devi/crex/alignment | ||
| + | ** analyzer prex_counting/prexLHRS_runNumber_200000.root for LHRS | ||
| + | ** analyzer prex_counting/prexRHRS_runNumber_200000.root for RHRS | ||
| + | ** .x alignDS.C | ||
| + | ** Look into the elastic peak and read the edge of quartz (the intersection of red and blue histograms in "Projected x on detector plane" plot) | ||
| + | ** Zoom in to see the precise edge | ||
Revision as of 14:15, 13 December 2019
- Set the HV for DN-Quartz (MAIN) detectors in both arms to -1900V (as explained in HVgui)
- Enable the HV channels
- Turn ON scintillators
- Turn ON VDCs (NOTE:Make sure the scintillator rate is below 500k before turning VDC ON)
- Take counting runs on both arms (LHRS and RHRS) atleast 200k events
- To analyze the runs:
- ssh -Y a-onl@aonl1
- goprex
- analyzer -l
- .x setup2.C(runnumber,200000)
- When you are done with taking counting data turn OFF the DN-Quartz (MAIN) detectors HVs
- NOTE: never turn ON DN-Quartz HVs during high current production running keeping them at higher HV (they will die)
- For safety, set their HV to production level (~900V) at the end
- To produce plots:
- In a-onl@aonl1 machine:
- cd devi/crex/alignment
- analyzer prex_counting/prexLHRS_runNumber_200000.root for LHRS
- analyzer prex_counting/prexRHRS_runNumber_200000.root for RHRS
- .x alignDS.C
- Look into the elastic peak and read the edge of quartz (the intersection of red and blue histograms in "Projected x on detector plane" plot)
- Zoom in to see the precise edge
