CPP Test 2020 - Schedule

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Assume that nominal the GlueX configuration consists of

  • No Pb shielding
  • DIRC installed
  • Solenoid field at 1350 A

CPP Test Configuration

  • With and without Pb shielding
  • DIRC removed
  • Solenoid field at 1350 A (no change)
Screenshots of test layout media:CPP_Testconfig.jpg  media:CPP_Testconfig2.jpg
media:CPP_Testconfig3.jpg  media:CPP_Testconfig4.jpg 
media:CPP_Testconfig5.jpg  media:CPP_Testconfig6.jpg

Possible sequence and times

  1. CPP test DAQ setup: 2 hrs
  2. Data GlueX configuration - Full Target/DIRC (repeat from Dec 2019): 2 hrs
  3. Empty target : 1 hr
  4. Data GlueX configuration - Empty Target/DIRC : 1 hr
  5. Configure experiment for CPP Test: 12 hr
  6. Fill Target :
  7. Install 1 Pb sheet: 1 hr
  8. Data CPP Test configuration- Full Target/no DIRC/1Pb : 1 hr
  9. Install 0 Pb sheet: 1 hr
  10. Data CPP Test Configuration - Full Target/no DIRC/ 0Pb : 1 hr
  11. Install 2 Pb sheets: 1 hr
  12. Data CPP Test Configuration - Full Target/no DIRC/2Pb : 1 hr
  13. Empty Target :
  14. Install 1 Pb sheet: 1 hr
  15. Data CPP Test configuration- Empty Target/no DIRC/1Pb : 1 hr
  16. Install 0 Pb sheet: 1 hr
  17. Data CPP Test Configuration - Empty Target/no DIRC/0Pb : 1 hr
  18. Install 2 Pb sheets: 1 hr
  19. Data CPP Test Configuration - Empty Target/no DIRC/2Pb : 1 hr
  20. Fill Target
  21. Restore nominal GlueX configuration: 4 hours.

Total time = 34 hours

Suggested personnel:

  • CPP will take necessary shifts during the test
  • May have up to 2 persons in the Counting Room and to install/remove Pb Sheets

Target dates:

  • Our preference is to conduct the CPP test before the scheduled end of the run period.
  • However, we recognize there are many advantages of scheduling the test to coincide with the second pass change on the accelerator schedule (nominally Sep 4), but with the danger that the entire run gets cut short. We request that an earlier date be considered if the opportunity arises.

The DIRC will have to be surveyed following the test.