Commissioning pathway through the nominal cycle. This is an iterative process - each phase is necessarily visited several times
Phase |
Beam |
Key tasks |
Comment |
Injection |
probe |
- Threading, capture, intitial RF
- Q, Q', coupling
- Preliminary beam instrumentation
- First pass collimator set-up IR7
- Optics measurement/correction
- Polarity checks
- ADT set-up
|
Provide some protection for what follows |
Ramp |
probe |
- Coarse collimators and TCDQ
- Tunes, orbit, Q' - first pass
- Dumps in ramp
|
Flat machine |
Flat-top |
probe |
- Measure and correct optics
|
|
Injection |
nominal |
- Orbit, bumps, experimental magnets
- ADT set-up
- RF set-up
- Injection protection
- Collimators - second pass
- LBDS - aperture checks
- Q' decay etc
|
|
Ramp |
nominal |
- ADT
- Octupoles
- Feedbacks
- Longitudinal blow-up
|
|
Flat-top |
nominal |
|
|
Squeeze (to 40 cm) |
probe |
- Flat machine
- Q, Q’, C-, orbit
- Measure correct optics
|
Iterate |
Ramp, squeeze, collide (80 cm) |
probe |
- Bumps on (sep & X)
- Collision beam process
|
First collisions |
Flat-top |
nominal |
Collimator set-up plus loss maps – bumps on |
|
Squeeze |
nominal |
TCT and TCL set-up |
|
Collide |
nominal |
|
First stable beams |