Run 11 100 GeV Au-Au Start-up Tasks

Basic Schedule (preliminary)

Prior to RHIC beam

Task
Goal
Contact
Status/Time
create latticeevaluate ramp (Au11v1, clone of Au104)Bruno, Tepikian, Marusiccomplete
power supply checkout
reverse q7 polarities for IBS-suppression lattice
Bruno, CEPS
complete
ramp testingtest and rampBruno, Marusiccomplete 5/2
RF conditioning
prepare cavities for operating voltages
HLRF
ongoing


Start-Up Mode

Task
Goal
Contact
Status/Time
Re-establish injection establish injection, circulating beam, bunched beam and lifetime
MCR, AP shift 1 shift
Instrumentation Setup
- BPM's
- Tunemeter (Atrus)
- Injection Damper
- Schottky
- BBQ
- BTF
- IPM
- WCM
- BLM
- 10 Hz feedback system
- Coherence monitor
verify operation for injection, ramp, store
System experts
ongoing
Machine Tuning
- orbit correction
- bend trim/orbit radius
- decoupling
- chromaticity
- optics measurements
optimize injection
MCR, AP shift
done
BBQ for tune feedback
Ready for 1st ramp!
BBQ crew
complete
Ramp Development1 day

6-12 bunches
low intensity
orbit,tune/coupling feedback
ramp with feedback both rings
orbit, xmean feedback
tune/coupling feedback
yellow transition dipole feedback
MCR, AP shift
done
RF setup and radial loop
monitor ramp conditions
ring-to-ring synchro
RF group
done
Transition crossing
phase timing
jump timing
chromaticity jump?
MCR, AP shift, Montag
done
Transition diagnostics
transition crossing plot for elog
LLRF, Montag
operational
chromaticity along the ramp
Try chromaticity feedback?
transition chromaticity jump
MCR, AP shift, Montag deferred
Store Development1 day

6 - 56 bunches
center beams & set storage frequency
cogging
increase bunch intensity to > 1 x 109
Then increase number of bunches
establish collisions
DX BPM timing
MCR, AP Shift
LLRF
BPM experts
done
Store Optics
Tape sequences?
orbit correction
decoupling
chromaticity
dispersion function measurement and correction
IR nonlinear corrections
tune scans: working point scans
optics measurements (AC dipole)
MCR, AP shift



ongoing
collimation setup

Drees
done
gap cleaning

MCR, AP shift, Drees
operational
Slow orbit feedback
SGOF at store
Marusic
operational
10 Hz feedback

Michnoff, Mernick
operational
Rebucketing
reduce vertex with storage cavities
RF group
operational


Ramp Up Mode
Task
Goal
Contact
Status/Time
ramp development with intense beam>1 x 109, >56 bunches; goal to get to 110 bunchesMCR, AP shift3-5 days
Stochastic cooling setuplongitudinal, vertical operation
set coupling for horizontal cooling
operational
detector backgrounds
optimize and document orbits
improve collimation
MCR, AP shift, Drees
ongoing
Vernier Scans
prerequisite for physics
Drees
done