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PHENIX Time Meeting Summary – February 9, 2010

On February 9, 2010, Stefan Bathe presented at the PHENIX Time Meeting, outlining crucial updates on integrated luminosity performance, data acquisition (DAQ) capabilities, and beam profile projections for upcoming runs. Key metrics included achieved luminosity of 0.55/1.4 nb^-1, with implications for recorded events and DAQ rates. Plans for upcoming maintenance were discussed, involving equipment fixes and enhancements essential for optimizing the MuTrFEM and RPC systems. The presentation emphasized the importance of efficient data collection for ongoing research efforts.

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PHENIX Time Meeting Summary – February 9, 2010

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  1. PHENIX Status Time Meeting, 2/9/2010 Stefan Bathe Stefan Bathe for PHENIX, Time Meeting

  2. Sampled Integrated Luminosity 0.55 / 1.4 (nb^-1) = 39% of goal (for sampled int. lumi.) 30/70 (days) = 43 % of time Stefan Bathe for PHENIX, Time Meeting

  3. DAQ Performance  if rate had been > 5 kHz at all times: could have recorded 4.49 billion events or 0.66 nb^-1 # events Int. lumi. in nb^-1 x10^6 Delivered beam ± 30 cm (PHENIX on) Taking min bias data: with |z| < 30 cm if DAQ rate < 5 kHz with |z| < 20 cm if DAQ rate > 5 kHz Recorded beam ± 30 cm (PHENIX on): 77 % Delivered beam ± 20 cm (PHENIX on) Recorded beam ± 20 cm (PHENIX on): 86 % HBD acceptance: ± 20 cm Stefan Bathe for PHENIX, Time Meeting

  4. Beam z Profile Now: 50-60 % Run-07: 50 % Projected Run-10: 65 % Begin fill: 59 % After 3 h: 50 % Stefan Bathe for PHENIX, Time Meeting

  5. Plan for Maintenance Day • MuTrFEM and HV fixes • Change MuTrigTLD's on South Station-1 • Fix West Carriage light • HBD rack work • RPC work in North Tunnel Stefan Bathe for PHENIX, Time Meeting

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