Brookhaven Science Associates U.S. Department of Todd Satogata 1 Fri May 16 2003 RHIC FY03 Deuteron-Gold Performance RHIC Deuteron-Gold Performance •Run Description/Chronology •Performance Goals Achieved •Luminosity Delivery RHIC Performance Limitations FY04 Au-Au Operations Projections http://www.rhichome.bnl.gov/AP/RHIC2003
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Brookhaven Science Associates U.S. Department of Energy Todd Satogata 1 Fri May 16 2003 RHIC FY03 Deuteron-Gold Performance n RHIC Deuteron-Gold Performance.
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Brookhaven Science AssociatesU.S. Department of Energy
Brookhaven Science AssociatesU.S. Department of Energy
Todd Satogata 2 Fri May 16 2003
RHIC Layout and dAu GeometriesRHIC Layout and dAu Geometries
Different species, Z/A provided new challenges in RHIC setup Injection with both equal rigidities and equal frequencies
BRAHMS/pp2pp
STARPHENIX
AGS
PHOBOS
RF
MP6 MP7Tandems
BoosterPol. H- Source
Linac
d Au12+
d Au79+
foil
Brookhaven Science AssociatesU.S. Department of Energy
Todd Satogata 3 Fri May 16 2003
11/1 Start of RHIC cooldown12/3 Blue ring at 4K, deuteron injection12/13 Deuterons accelerated to flattop; Both rings at 4K12/22 First ramps of d/Au to collision energies12/24 First d/Au collisions at all experiments12/27 Start of routine detector commissioning1/9 Routine 110 bunch ramping1/12 Start of 2003 d/Au Physics Run2/21 Low-noise storage RF driver2/22 Deuteron transverse instability fixed2/22 First production store to hit goal levels2/26 Return to 56 bunch operations; routine goal operations3/24 End of FY03 d/Au Physics Run
kHz-MHz transverse instabilities created emittance growth New instrumentation provided near-immediate performance increase
Brookhaven Science AssociatesU.S. Department of Energy
Todd Satogata 11 Fri May 16 2003
RHIC Beam Experiments ProgramRHIC Beam Experiments Program
Focus on RHIC performance/upgrades, facility-driven beam physics e.g. pressure rise/intensity limitations study (Zhang, Iriso-Ariz, Fischer,…)
Fill 1: 16 bunches+[4 empty]+..., Fill 2: 12+[8]+..., Fill 3: 14+[6]+... Pressure rise of Fill 2 is lower than Fill 1.Fill 3: bunch length is longer and intensity is lower.
Fill 2
Fill 3
Fill 1
Brookhaven Science AssociatesU.S. Department of Energy