Dear Collegue Enclosed are the minutes from the weekly planning meeting Flemming ------------------------------------------------------ Flemming Videbaek Physics Department Brookhaven National Laboratory tlf: 631-344-4106 fax 631-344-1334 e-mail: videbaek@bnl.gov ----- Original Message ----- From: "Tom Ludlam" <ludlam@bnl.gov> To: "Marx, Michael" <marx@sbhep.physics.sunysb.edu>; "Aronson, Sam" <aronsons@bnl.gov>; "Ozaki, Satoshi" <ozaki@bnl.gov>; "Bond, Peter" <bond1@bnl.gov>; "Hallman, Tim" <tjhallman@bnl.gov>; "Zajc, Bill" <zajc@nevis1.nevis.columbia.edu>; "Paul, Peter" <ppaul@bnl.gov>; "Kirk, Tom" <tkirk@bnl.gov>; "Christie, Bill" <christie@bnl.gov>; "Peggs, Steve" <peggs@bnl.gov>; "Butler, Mike" <butler1@bnl.gov>; "Busza, Wit" <busza@mit.edu>; "Videbaek, Flemming" <videbaek@hi2>; "Harris, John" <Harris@star.physics.yale.edu>; "Lowenstein, Derek" <lowenstein@bnldag.ags.bnl.gov>; "Baker, Mark" <mdbaker@bnl.gov>; "Yousef Makdisi" <makdisi@bnl.gov>; "Murtagh, Michael" <murtagh@bnl.gov>; "Wlodek Guryn" <guryn@bnl.gov>; "Sebastian White" <white1@bnl.gov>; "Marion Heimerle" <heimerle@bnl.gov>; "Robert Pak" <pak@bnl.gov>; "roser1" <roser1@bnl.gov>; "waldo" <waldo@bnl.gov>; "dejan" <dejan@bnl.gov>; "brennan" <brennan@bnl.gov>; "drees" <drees@bnl.gov>; "pilat" <pilat@bnl.gov>; "beavis" <beavis@bnl.gov>; "pile" <pile@bnl.gov>; "throwe" <throwe@bnl.gov>; "Gerry Bunce" <bunce@bnl.gov>; "Mary Campbell" <maryc@bnl.gov>; "Russell Betts" <betts@uic.edu>; "frawley" <frawley@nucott.physics.fsu.edu>; "SATOGATA" <SATOGATA@bnl.gov> Cc: "Steadman, Steve" <Stephen.Steadman@science.doe.gov> Sent: Sunday, April 08, 2001 11:29 AM Subject: RHIC Planning Meeting > Dear All, > > THE NEXT RHIC MACHINE/DETECTOR PLANNING MEETING: > > WEDNESDAY, APRIL 11, 1:30 > BUILDING 911 LG. CONF. ROOM > > Below are the minutes from last week's meeting. > > Tom > > ............................................................................ ............. > > RHIC Machine/Detector Planning Meeting > April 4, 2001 > > Thomas Roser described the current status and schedule for the > cool-down: > Helium leaks have been isolated in the 4:00 and 6:00 valve boxes. > Repairs will delay the beginning of the cool-down by ~1 week. The > schedule for closing up the ring will not be shifted (shield walls up > May 1). > The beam energy for the heavy ion run will be 100 GeV [sqrt(s) = 200]. > This will not exactly coincide with the proton (spin) beam energy of > 100.5, but it is decided not to push the DX magnets beyond the design > maximum for Au running. > > Dejan Trbojevic announced that the plan and schedule for RHIC start-up > can be found at www.rhichome.bnl.gov/AP/RHIC2001/. > > Fulvia Pilat outlined the general plans for machine studies. It is > expected that once we reach stable operations, there will be a block of > 12 hr/week scheduled for these studies. > > Angelika Drees discussed some issues at the interface between machine > and experiment operations. She needs a point-of-contact from each > experiment to provide details of magnetic field measurements, the > configuration of signals sent to and from MCR, etc. > It was noted that we will start up with a full 60-bunch RF pattern-- > thus, if we run with a small number of filled buckets, they will not be > equally spaced around the machine (as was the case last year), and so > there may not be collisions in every area. > All experiments expressed a desire for a scheduled weekly maintenance > shift during extended periods of stable beam running. > > PHENIX (Tony Frawley): The South Muon Arm is in place. The repaired > Drift Chamber was re-installed this week. PHENIX should be ready to > start commissioning by April 19. > > STAR (Bill Christie): The detector components for the upcoming run are > all in place. Electronics for the readout of EMC modules has not yet > arrived at BNL-- hope to have some of the 24 modules (1/5 of full > barrel) instrumented as the run begins. The shield wall will be up on > May 1. The magnet pole tips will be moved into place shortly > thereafter. Critical path item for the start-up: completion and > certification of safety interlocks. > > BRAHMS (Dana Beavis): The forward spectrometer is being prepared for an > innermost stop at 2.3 degrees. This will require moving the beam pipe 1 > cm off axis. The new electrical sustation is in place, allowing the > spectrometer magnets to reach full field. > > pp2pp (Wlodek Guryn): Preparation is underway for an engineering run > during the proton commissioning period this summer. > > PHOBOS (Russell Betts): The Second Spectrometer Arm is in place. All > systems are ready to go. > > Zero-Degree Calorimeters (Sebastian White): The ZDCs at all four > experiments are being prepared, with upgraded phototube bases, to > provide uniformly calibrated luminosity monitoring. Analysis work is in > progress to determine absolute cross sections and luminosity from the > ZDC measurements. >
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