Goals of the on-surface commissioning:
- Verification of all the detector staves and cables up to the PP2 at the end of the Service Barrel
* Exclusion of ‘installation damage’
* Estimation of margin of DCTRL and HSlinks (HSlink issues would lead to a need for additional FW)
* 2 cosmic data taking runs (minimum) with a distance of a week (worst case: manual setup of the detector and software)
* NOT stability/performance test for RU/CRU/FLP/etc
- At least 4 weeks of ‘burn-in’ for the full detector (IB ~done)
* No performance alteration (loss of chips or links)
* Continuous DCS monitoring
* POTENTIALLY: readout tests to check the links continuously
* Repeated threshold/noise to see stability
- Conceptual verification of the full electronics chain detector up to CRU
* Not all units need to be 100% tested
* Trigger fiber splitting to be checked
* Optical power margin
* Clock distribution
Planning:
- Finish OB verification next week (software/firmware in good shape, solving remaining HW issues: cables, PBs, RUs)
- Preparation of cosmics data taking until end of July
- Finalize minimum verification (without 4 weeks burn-in) mid of August
- Restart of shifts: earliest mid-August, realistically: end of August/beginning of September
Duration of stave replacements (if needed):
- OB: 6 weeks
- IB: 3 weeks
- Testing: ~2 weeks (4 weeks if both OB Half-Barrels concerned)
