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Run11 MuTrig -FEE Summary

Run11 MuTrig -FEE Summary. RIKEN/RBRC Itaru Nakagawa. MuTrig -FEE Parameters. MuTR Non-Stereo Gaps. St1. St2. St3. 2 of 3 AND. 3 of 3 AND. No MuTRG -FEE. MuTrig -FEE Operation. 2/28. 3 /6. OR, Eff =97%. AND2, Eff =97%. 4 / 1 8. 3 /17.

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Run11 MuTrig -FEE Summary

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  1. Run11 MuTrig-FEE Summary RIKEN/RBRC Itaru Nakagawa

  2. MuTrig-FEE Parameters MuTR Non-Stereo Gaps St1 St2 St3 2 of 3 AND 3 of 3 AND No MuTRG-FEE

  3. MuTrig-FEE Operation 2/28 3/6 OR, Eff=97% AND2, Eff=97% 4/18 3/17 Thresholds are tuned to set efficiency~97% channel-by-channel.

  4. Stability

  5. LV North Snapshot Jan.10 !

  6. Cooling water Pressure tuning Lost St3, Oct4 Chs-1, Brd-1 2/400 ADTX boards disabled through Run11 N.St3, Oct4, Gap2 N.St3, Oct4, Chs-1, Brd-1 Shut off LV

  7. Katsuro Nakamura MuTrig-FEE Error Handling MuTRG-MRG + DCMIF • shift crews can find errors through online monitor • most of errors can be solved with Reset(“Download”) or Initialization(“Feed”) online monitor Data Collecting Module online monitor notices the error. error information is sent to DAQ through data stream.

  8. Errors in Electronics All “PHYSICS” data South arm North arm DCMIF0 DCMIF0 developed by K. Nakamura Y-axis: Channel X-axis: Run numbers DCMIF1 DCMIF1 Stability Monitored by Sanghwa Park (SNU) DCMIF2 DCMIF2 Errors North St-3, Oct.6 OK! DCMIF3 DCMIF3 • frequent failure especially for two ADTX boards

  9. Errors in Electronics • Total 419 PHYSICS runs for pp collision • Total 90 errorsobservedduring PHYSICS data taking ~ 11.2 % of total data ~ 7.6 % of total data Most likely frequent errors are : beam clock counter mismatch, bad data format from ADTX

  10. Error Log • Ed Desmond developed status log system • read status through VME • automatically processed at the end of each run • log error information + parameter values • It’s very helpful to investigate the errors • and recall the parameter setting • Error analysis to be done • To be dumped to DB for QA -> Spin Festa Thanks to Ed Desmond status log output

  11. Noise level (Fake hit rate) Fake hit rate [Hz] AuAu Run starts Fake hit rate is sampled from abort gap Run number • Trigger entry threshold set by 10k→ No statistical issues in the plot • Noise level is negligibly small to form significant accidental coincidence • triggers.

  12. Noise level (Fake hit rate) St1 St2 Maintenance this shutdown St3 North arm South arm

  13. Trigger timing • Non-enough timing resolution of MuTr • Based on trigger timing study → MuTr hit signal(with extended clock width) RPC hit signal (good timing resolution) OR logic

  14. Trigger timing • Trigger width setting : 3 • stable overall • Hardware failures or inadequate • delay tune can introduce a sloppy • timing Clock [1 clock=106 ns] acceptable range Run number

  15. Trigger timing Same graph for all octants of North arm Octant 1~8 St1 St2 St3

  16. Trigger efficiency - North Trigger entries threshold: >100 Oct1 Oct2 Oct3 Oct4 Oct5 Oct6 Oct7 Oct8

  17. Trigger efficiency – South Trigger entries threshold: >100 Oct1 Oct2 Oct3 Oct4 AuAu Run starts Efficiency (%) Oct5 Oct6 Oct7 Oct8

  18. Operation/Stability Summary • Disabled ADTX • North St-3, Oct-3, Gap-2 • North St-3, Oct-3, Chs-1, Brd-1 • Frequent Errors • Two ADTX boards in South and North (one each) • High Fake Rates • South St-1, Oct-3, Gap-2 • North St-1, Oct-1, Gap-3 • North St-1, Oct-8, Gap-1 • North St-3, Oct-1, Gap-2

  19. Rejection Performance

  20. MUID Rejection Performance

  21. MUID Rejection Power The very Last Fill 3/2~ North Tunnel Shield 3/17~ South Tunnel Shield Background Condition Improved!

  22. SG1 Raw Trigger Rates OR AND2

  23. Liveitme:0.75 ~ 0.8 PHENIX 2kHz Bandwidth

  24. North and South OR -> AND2 didn’t earn much rejection power to SG1

  25. OR vs. AND2 Logic From Yoshinori Fukao’s Run9 Analysis OR AND2 OR .vs AND2 supposed to be non-trivial trade off between efficiency and RP.

  26. Summary • SG1 trigger has been stably operated thru Run11. Only minor issues are encountered. • North Rates .vs South Rates needs to be understood. • OR / AND2 RP looks inconsistent with Run9 expectation. • Timing alignment between Stations before signals are sent to LL1

  27. backups

  28. LL1 Efficiencies MuTr LL1 boards developed by U.Iowa ADTX Josh Perry’s Online Monitor LL1 GL1 Trigger MRG DCMIF DCM Identical hit information

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