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Status Update on RHIC Run 11: Critical Systems and Upcoming Beam Setup

This meeting report outlines the current status and preparations for the RHIC Run 11 as of January 4, 2011. The AGS is expected to achieve 60-65% polarization with 1.5*10^11 intensity. Critical ramp systems have been successfully tested, with smooth switching anticipated between 9/28 MHz cavities. Preparations for both downstream and upstream polarimeter tests are underway. The schedule includes a cryo cooldown period with minimal beam activity, leading to an optimistic start for beam setup on Friday night. Meetings for progress updates are scheduled for Friday morning and afternoon.

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Status Update on RHIC Run 11: Critical Systems and Upcoming Beam Setup

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  1. RHIC Status of pp Run11 Haixin Huang Time Meeting 01/04/2011

  2. Critical Systems • AGS is robust to deliver 60-65% polarization with 1.5*1011 • AtR: beam has been dumped into W dump. • Ramp System • Tested successfully. • Two ramps in hands: one regular one and one with D’ shifted down • RHIC Injection • Switching between 9/28MHz cavities is expected to be smooth • RHIC CNI polarimeters • Dry run for down stream polarimeter has finished. Test run for upstream polarimeter will happen tomorrow. • Tune/orbit feedback on the ramp • Tune feedback is successful, orbit feedback will require beam for further test. The feedback system is expected to be ready for the first ramp.

  3. Schedule • Jan. 3-9 Cryo cool down, not much beam activity is expected, just a few owl shifts over the weekend. • The most optimistic estimate is to start beam setup in blue Friday night. Power supply work will take two shifts per day for the weekend, probably also first a few days next week. • The 9AM meeting will start on Friday. • The 3:30PM meeting for beam development will start when we have beam time during day time.

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