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RHIC Operation Status

The RHIC operation continues to run smoothly, thanks to the dedicated efforts of multiple teams. Following a successful EVE shift with a declared physics run on Tuesday, we conducted a vernier scan on Wednesday. Background reduction efforts were prioritized, though we encountered a significant challenge on Thursday with a large measured yellow emittance at injection. A long store occurred on Saturday despite operational issues, and plans for the week include maintaining stable physics runs and implementing transverse stochastic cooling techniques.

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RHIC Operation Status

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  1. RHIC Operation Status Yun Luo, yluo@bnl.gov ( 2012 May 01, Timing Meeting )

  2. Operation Updates RHIC operation is running smoothly and continuously. Thanks to hard work from many groups. Tuesday Declared Physics run in EVE shift Wed Vernier scan / background reducing ThursdayPanic: huge measured Yellow emittance at injection Friday QLI due to Blue mains in OWL shift Both L cooling on from fill 16795 in EVE shift Saturday Long store in DAY shift (LIPA work at Booster behind) Sunday QLI due to in DAY shift due to bi5-qd2unstable Shorter store in EVE shift due to yi6-th17 tripped off Monday Long store in DAY shift ( RF work in Booster )

  3. Bunch Intensities & Rates

  4. Transverse Emittance & Bunch Length

  5. Injection bunch Intensities

  6. Intensity Ramp efficiency

  7. Plan of this week • Continue Stable Physics run • Transverse Stochastic cooling • Double-merging in Booster • APEX Wednesday May 02

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