Phase |
Sub-phase |
Beam dump |
BLMs |
Beam Interlock |
Collimators |
TDI |
Phase 1 & 2 |
Commission
Injection region, establish circulating beam |
|
|
|
OUT |
IN - CLOSED |
Phase 3
- PILOT |
Establish circulating
beam |
|
Commission
acquisition - no dump |
Injection inhibit |
OUT |
OUT |
Phase 3
- PILOT |
Stable beam 450 GeV |
Commission
dump at 450 GeV |
Dedicated commissioning period |
Beam based Interlocks: System by system verification |
First bootstapping attempt, subset to say 10 sigma nominal to
provide some protection in ramp |
First attempt to position
with respect to circulating beam |
Phase 4 - Single bunch - intermediate intensity |
Stable beam 450 GeV |
Verify |
Continued commissioning |
|
Preliminary commissioning to nominal injection settings |
Preliminary
commissioning to nominal injection settings |
Phase 6 - switch to nominal cycle |
Stable beam 450 GeV |
|
|
|
Confirm |
Confirm |
Phase 7 -
PILOT |
Ramp pilot - snapback |
|
Acquisition - no dump, check losses against thresholds |
|
Coarse settings |
Out |
Phase 8 -
PILOT |
Ramp pilot - single beam, intermediate energies |
Commission dump at intermediate energies |
Limited sub-set to BIC following commissioning of dump |
Sub-set BLMs |
Coarse settings |
|
Phase 8: Single bunch - intermediate intensity |
Before going above in ramp ~2 TeV |
Verify |
|
|
Nomainal Injection settings |
|
Phase 4: Multi bunch - pilot intensity - various
configurations. Single beams leading to two beams |
Stable beam 450 Gev |
Check timing, injection vetos, abort gap |
Starts to get serious, tighten thresholds for critical BLMs,
introduce thresholds for others. Start tuning. |
Critical BLMs, dump BPMs |
Progressively finer adjustment, orbit stabilisation |
First attempts at nominal positions during injection process |
Phase 8: Single bunch - intermediate intensity |
Ramp |
Some stops in ramp, orbit stability |
As above |
As above |
Injection settings for ramp, orbit stabilisation is required |
n/a |
|
Ramp pilot - two beams |
|
|
|
|
|
|
7 Tev - two beams |
|
|
|
|
|
|
Collide pilot - unsqueezed |
|
|
|
|
|
|
First atempts at squeeze [following at least some of the stages shown below] |
|
|
|
|
|
|
|
|
|
|
|
|
Multi
bunch - intermediate settings |
Injection |
Fully
operational at all stages |
Passing
damage threshold. All critical BLMs with appropriate thresholds |
Fully
commissioned. BLMs, BPMS, etc. |
Fine
adjustment |
Fine
adjustment |
|
|
|
|
|
|
|