FYI ------------------------------------------------------ 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: Friday, June 29, 2001 5:42 PM Subject: RHIC Run Update: Fri Jun 29 > All, > > As of earlier today, beam has been circulating in both blue and yellow > rings at injection. We have made good progress in instrumentation timing > in the yellow ring, and achieved decent lifetime with RF-captured single > bunches. Remaining work in the yellow ring at injection includes > instrumentation timing, orbit improvement, decoupling, and optics analysis. > > Activities tonight include quench protection tuning for fast yellow ramps > and checkout of the tenth yellow gammaT power supply in the tunnel. We will > return to blue beam at approximately 8 PM, when we will attempt further blue > acceleration ramps to evaluate issues of radial steering around transition. > Overnight and through the weekend, we will focus on yellow ring injection and > instrumentation, and ramping of both rings to gamma=70 to establish collisions. > > DX Training has been deferred to the week of July 2, as our current program > priority is to establish a beachhead demonstration of collisions at gamma=70. > These collisions may occur at any time over the weekend; we expect to spend > a limited time (a shift or less) performing timing and hardware checks > at this point, then start DX training for design energy operation. We > optimistically expect that design energy collisions may be achieved as soon as > middle or late next week. Stay tuned! > > -Todd > -- > --------------+-----------------------------+----------------+------------ ----- > Todd Satogata | BNL C-A Accelerator Physics | (631) 344-5826 | satogata@bnl.gov > --------------+-----------------------------+----------------+------------ ----- >
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