From: Burton Budick (burton.budick@nyu.edu)
Date: Tue Dec 31 2002 - 14:47:29 EST
----- Original Message ----- From: Flemming Videbaek <videbaek@rcf.rhic.bnl.gov> Date: Wednesday, December 25, 2002 2:16 pm Subject: [12/25 report from schedul. phys > -------- Original Message -------- > Subject: 480 V transformer failure in 1000P > From: Drees <drees@bnl.gov> > Date: Wed, December 25, 2002 8:19 am > To: Scheduling Physicist <schedphy@mail.pbn.bnl.gov> > > Good Morning! > > When I said I would keep you posted I had more progress reports in > mindthan this. Around 7:00 am this morning a 480 V transformer in > 1000Pbailed out :(, taking down all power in this building and > preventing us > from using AtR. The Site Supervisor has been called and a line > crew is > coming in. As you can imagine this can take a little longer on > christmas day .... (my shift virtually just cancelled itself ;)). > > Last night we had some succesful 53x53 ramps in RHIC :) but earlier > thismorning ran into problems with the permit being pulled by the loss > monitors during the ramp (i.e. too many losses above our threshold > triggering a beam dump). That's why just before the transformer > failurewe ramped 6x6 in RHIC to storage energy. This beam is still > in the > machine (ramped to flattop) and is currently being used by PHENIX for > timing purposes. We'll keep it as long as possible. > > As usual, I'll keep you posted. Have nice christmas day in any case! > > Angelika > > (wed afternoon) > > Hi, > > a real quick one for all those who are 'watching': the AtR power > supply/transformer problem seems fixed and we are back in business > :). We > just injected Au beam and did a succesful mode switching to Blue. > We'llcontinue our work with both beams. Enjoy christmas afternoon, > > Angelika > > > -- > Flemming Videbaek > Brookhavne National Laboratory > Physics Department > tlf 631-344-4106 > fax 631-344-1334 > e-mail: videbaek@bnl.gov > > > > Hi Flemming, Below are the dates and times that work best for me: Alternate Mondays starting at midnight until 8 am Tuesday morning: January 13, January 27, February 10, February 24, March 10, March 24 Alternate Thursdays from 8 am-4 pm: January 23, February 6, February 20, March 6, March 20 This has me taking 1 shift per week. We can continue this pattern through April. I wish you and your family a healthy, happy year.
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