Difference between revisions of "Target density variation check"

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== Run summary ==  
 
== Run summary ==  
 
* First measurement 09/02/2019
 
* First measurement 09/02/2019
 +
** [https://userweb.jlab.org/~sanghwa/prex/running/dyn_dens.pdf Summary plots]
 
** [https://logbooks.jlab.org/entry/3727894  HALOG summary]
 
** [https://logbooks.jlab.org/entry/3727894  HALOG summary]
 
** Target #7 and #10 were checked for current range 5-70uA
 
** Target #7 and #10 were checked for current range 5-70uA
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* Second measurement 09/03/2019
 
* Second measurement 09/03/2019
 +
** [https://userweb.jlab.org/~sanghwa/prex/running/dyn_dens_part2.pdf Summary plots]
 
** [https://logbooks.jlab.org/entry/3727983 HALOG summary]
 
** [https://logbooks.jlab.org/entry/3727983 HALOG summary]
 
** Took high statistics run at very low current (30nA requested), Target #10
 
** Took high statistics run at very low current (30nA requested), Target #10
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* Qsq runs 09/03/2019
 
* Qsq runs 09/03/2019
** 400-500k events for LHRS and RHRS runs during Qsq measurements with various targets (Pb7, 8, 9, 10)
+
** [https://userweb.jlab.org/~sanghwa/prex/running/dyn_dens_Qsqdata.pdf  Summary plots from Qsq runs]
 
** [https://logbooks.jlab.org/entry/3728471 HALOG run summary]
 
** [https://logbooks.jlab.org/entry/3728471 HALOG run summary]
** Consistency between LHRS and RHRS recovered for target #10 [https://userweb.jlab.org/~sanghwa/prex/running/dyn_dens3.pdf]
+
** 400-500k events for LHRS and RHRS runs during Qsq measurements with various targets (Pb7, 8, 9, 10)
** Summary plots from Qsq runs: [https://userweb.jlab.org/~sanghwa/prex/running/dyn_dens_Qsqdata.pdf]
+
** Consistency between LHRS and RHRS recovered for target #10
 
** Similar signature shown from Target 9 and 10. Target 9 and 10 were used with similar position wrt to collimator center. Later we moved the target ladder horizontally and vertically during repairs while we were running with Target 8.
 
** Similar signature shown from Target 9 and 10. Target 9 and 10 were used with similar position wrt to collimator center. Later we moved the target ladder horizontally and vertically during repairs while we were running with Target 8.
  

Revision as of 14:03, 4 September 2019

Run summary

  • First measurement 09/02/2019
    • Summary plots
    • HALOG summary
    • Target #7 and #10 were checked for current range 5-70uA
    • Septum mistuned on purpose in order to reduce rates, T2 trigger is used
    • Sieve in
    • Clear non-uniformity observed from degraded target (#10) compared to good (still in use) target (#7).
    • More visible at higher current, but hint of similar signature of density rearrangement seen at low current.
    • Consistent results from both LHRS and RHRS spot data


  • Second measurement 09/03/2019
    • Summary plots
    • HALOG summary
    • Took high statistics run at very low current (30nA requested), Target #10
    • Septum at nominal setting, no Sieve
    • Similar result shown in RHRS data as previous high current test
    • Different distribution in LHRS is puzzling, might be related to DAQ problem


  • Qsq runs 09/03/2019
    • Summary plots from Qsq runs
    • HALOG run summary
    • 400-500k events for LHRS and RHRS runs during Qsq measurements with various targets (Pb7, 8, 9, 10)
    • Consistency between LHRS and RHRS recovered for target #10
    • Similar signature shown from Target 9 and 10. Target 9 and 10 were used with similar position wrt to collimator center. Later we moved the target ladder horizontally and vertically during repairs while we were running with Target 8.

How to make plots

  • full replay macro can be found from:
/adaqfs/home/a-onl/sanghwa/stupid_spot/get_rastersize.C
  • To run:
> analyzer -b -q 'get_rastersize.C(run#, first evt, last evt, "outputpath/outputname")'

Example:

> analyzer -b -q 'get_rastersize.C(2293, 1, -1, "rootfiles/L2293.root")'
  • To draw raster current xy distribution:
    • /adaqfs/home/a-onl/sanghwa/stupid_spot/make_2D.C
> root -b
> .L make_2D.C
> plot_all("dyn_therm.list")
This will create dyn_dens.pdf. To open:
> evince dyn_dens.pdf &
  • Input file format:
<LHRS run#> <LHRS file path> <RHRS run#> <RHRS file path> <current> <target#>