RHIC Status Time Meeting2/10/2015

Then said to us: "You can no farther go Forward upon this crag, because is lying All shattered, at the bottom, the sixth arch. X-arc.

Can you tune around it?

RHIC Status/To Do List• Last week– Still wrapping up hardware installations– Two day interruption for X-arc transformer (some

yellow only operation overnight)– Spurious RF events

• Rebucketing set up (and beautiful)• Ramp/rebucket stable to 2.0e11/bunch– Not for collision yet

• Yellow aperture scan looks promising for p-Au

RHIC Status/To Do List• Delivering stores by default now with scheduled

interruption– So far only 1.1e11/bunch

• Brief no-beam period tomorrow to do final test of e-lens warm magnets.– Electron beam commissioning to start this week

• Lumi ~30% of Run 12, polarization in the 60’s.– Polarization will change with intensity– Continue to work on end-of-ramp losses and store

lifetime