The Relativistic Heavy Ion Collider Run-11
  Heavy Ion Operations 
[Polarized Protons FY11 (SPIN 2011)]

[STAR]  [PHENIX]  [Machine/Detector Planning] 
[RHIC AGS Machine Status (ESFD)]  [Scheduling Physicist]  [Accelerator Physics Experiments FY11]
[Daily Meeting Information]

RHIC Retreat 2011

max. achieved this run:
E
 GeV
 9.8
 100 13.5
Lpeak
 1026cm-2s-1
 0.8
 52.6 2.0
Lavg
 μb-1/week 15
 1000 30
[as of  7/1/2011]
Current information
[C-AD Broadcast]  [Ring Temperatures]  [Configuration Control]  [Maintenance schedules]
Logs
[Elogs]  [OC Elog]  [RHIC Au-Au elog]

Schedules

[RHIC Shift Leaders Schedule] [Plan of the Day] [RHIC 9 GeV start-up/ramp-up tasks] [RHIC 100 GeV start-up/ramp-up tasks] [RHIC 13.5 GeV start-up/ramp-up tasks]

References
[Run 11 Spreadsheets] [Run-11 Parameters (Gardner)] 
[RHIC Dry Run Plan]  
[Objects in Blue]  [Objects in Yellow] 

[Controls]  [Operations]  [QLI Analysis] [Quarterly Reports] 

day-to-day run history
 Schedule
See
Run 11 History
M-W-F status meetings 12:00 LCR

Run 11 startup schedule:
  • Saturday, April 2: Injector setup begins
  • Monday, April 18: Polarized run ends
  • Monday, April 18: RHIC beam development begins
    • 18 GeV Au-Au
    • Start Up mode
    • Ramp Up mode
  • Monday, April 25: Physics begins
  • Monday, May 2: RHIC beam development
    • 100 GeV Au-Au
  • Friday, May 5: Physics Begins
  • June 20: RHIC beam development
    • 27 GeV Au-Au
  • June 22: Physics begins
  • Wednesday, June 29, 0600: End of Run-11



RHIC Parameters for 9.8 GeV Au-Au Run:

 

beam energy[GeV]

working point (Qx,Qy)

β*(IP 6 8 10 12 2 4)

injection/store

9.796

B: (31.23, 32.216), Y:(31.232, 32.217)

2.5 3 10 10 10 10

RHIC Parameters for 100 GeV Au-Au Run:

 

beam energy[GeV]

working point (Qx,Qy)

β*(IP 6 8 10 12 2 4)

injection

9.796

B: (31.23, 32.216), Y:(31.232, 32.217)

10 10 10 10 10 10

ramp

9.796 -- 100

same

beta squeeze

store

100

B: (31.237, 32.229), Y:(31.210, 32.205)

0.7 0.7 4 4 4 4 (note: 2 mrad crossing at 4m β*)

RHIC Parameters for 13.5 GeV Au-Au Run:

 

beam energy[GeV]

working point (Qx,Qy)

β*(IP 6 8 10 12 2 4)

injection

9.796

B: (31.23, 32.216), Y:(31.232, 32.217)

10 10 10 10 10 10

ramp

9.796 -- 13.5

same

beta squeeze

store

13.5

B: (31.237, 32.229), Y:(31.210, 32.205)

3 3 5 5 5 5

Ramp file usage:

Ramp Name Fills Dates Comments
Au11v0 n/a 4/18/11-4/19/11 Starting 9.0 GeV lattice.  Never used in beam operations.
Au11v1 15759-16092 5/2/11-6/20/11 100 GeV gold lattice, w/ IBS suppression
Au11v2 15481 4/19/11-4/20/11 Starting 9.8 GeV lattice.  Never used in beam operations.
Au11v3 15481-15759 4/20/11-5/2/11 9.8 GeV lattice, w/IBS suppression
Au11v5 n/a n/a 100 GeV gold lattice, w/IBS suppression, zero crossing angle at IP2.  Never used in beam operations.
Au11v6 16094-16207 6/20/11-6/28/11 13.5 GeV gold lattice, w/IBS suppression



RHIC Run-11 sub-runs:
Beam energy 9 GeV 100 GeV 13.5 GeV
Purpose Physics
 Physics
 Physics
Time 2 weeks ~7 weeks ~1 week
Experiments

PHENIX, STAR

PHENIX, STAR

PHENIX, STAR

  Run-11 projected Luminosity:
projected luminosity
Low Energy luminosity

Achieved parameters at 100 GeV Au-Au runs:

 
 units
 design Run-2 Run-4
 enhanced design Run-7
 Run-10
 Run-11
Energy GeV
 100 100 100
 100 100
 100
 100
No of bunches ...
 55 55 45
 111 103
 111
 111
Ions/bunch 109
 1.0 0.6 1.1
 1.0 1.1
 1.1
 1.5
β* (IP6, IP8)
 m
 2.0 1.0 1.0
 1.0 0.8
 0.7
 0.7
Peak luminosity 1026cm-2s-1 9 4 15
 30 30
 40
 50
Avg. store luminosity 1026cm-2s-1 2 1.5 5
 8 12
 20
 30
Luminosity per week  μb-1/week 50 24 160
 300 380
 650
 1000
Run length weeks (physics) -- 15.9 12 -- 12.8 10.9 6.4
Time in store % of calendar time 26 53
 49
 53
 59

Achieved parameters at Medium/Low energy Au-Au runs:

 
 units
 Run-1 Run-2
 Run-4
 Run-10
 Run-10
 Run-10
 Run-10
 Run-11 Run-11
Energy GeV
 65.2 9.8
 31.2
 31.2
 19.5
 5.75
 3.85
 9.8 13.5
No of bunches ...
 56 55
 45
 111
 111
 111
 111
 111 111
Ions/bunch 109
 0.5 0.6
 1.0
 1.2
 1.3
 1.1
 0.5
 0.9 1.45
β* (IP6, IP8)
 m
 3.0 3.0
 3.0
 2.5
 3.0
 6.0
 6.0
 2.5, 3.0 3.0
Peak luminosity 1026cm-2s-1 0.3 0.08
 1.2
 4.5
 2.2
 0.2
 0.1
 0.8 2.0
Avg. store luminosity 1026cm-2s-1 0.17 0.02
 0.6
 3.0
 1.3
 0.1
 0.05
 0.4 1.2
Luminosity per week  μb-1/week 4 1
 20
 110
 50
 3.3
 0.55
 15 30
Run length weeks (physics) 5.3 0.1 1.3 2.9 1.9 1.1 4.6 1.4 1.1
Time in store % of calendar time
65
 68
 82?
  77
  55
 71 64

Gregory Marr gmarr@bnl.gov