Dear Collaborator, Just as thinhs were moving well problems appeared, I guess no surprise. This is the new so far. Flemming ------------------------------------------------------ Flemming Videbaek Physics Department Brookhaven National Laboratory tlf: 631-344-4106 fax 631-344-1334 e-mail: videbaek@bnl.gov ----- Original Message ----- From: "Todd Satogata" <satogata@bnl.gov> Sent: Wednesday, May 30, 2001 1:25 PM Subject: RHIC Status and yellow ring bus short > Hello all, > > Late Tue May 29, a hard short to ground was discovered on the RHIC > Yellow ring dipole bus, near Q6 in the 12 o'clock section. Repair > necessitates a multi-day warmup of that section and intrusive surgery > into the cryostat interconnects, with preparations for warmup starting > today and warmup starting Fri Jun 1. The total shift in yellow ring > schedule is estimated at two weeks. > > We are currently investigating the possibility of continuing the > highly successful Blue ring restart on evening shifts during this > period, but we will not know the feasibility of this activity until > after yellow section warmup is complete on Mon Jun 4. Siemens > installation and checkout is also being considered if beam activity is > not feasible. Blue ring beam activities, including possible ramping > to 70 GeV/u, are still scheduled for evenings tonight and tomorrow > night. Beam activity over the weekend is under discussion. > > The Scheduling Physicist page will be updated with a new schedule > and details after the experimental integration meeting at 1:30 this > afternoon. > > -Todd > -- > --------------+-----------------------------+----------------+------------ ----- > Todd Satogata | BNL C-A Accelerator Physics | (631) 344-5826 | satogata@bnl.gov > --------------+-----------------------------+----------------+------------ ----- >
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