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FASER LS2 work coordination meeting
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Europe/Zurich
112/2-023 (CERN)
Present:
Marco Andreini, Caterina Bertone, Liam Andrew Dougherty, Fabio Formenti, Francisco Sanchez Galan, Jamie Boyd, Jonathan Gall, Yann Maurer, Serge Pelletier, Brian Petersen, Claudio Scoero, Aleksandra Wardzinska
Introduction (Jamie Boyd):
- Gave recap of the workpackage (WP) structure and who is involved
- Meetings are planned for every second Thursday 14:00-15:00.
- All documentation including safety documentation should go into the newly setup EDMS structure (next talk)
- Since May 30th is a holiday, the next meeting will be June 6 (invitation to be sent soon)
EDMS:
- A new EDMS node for "FASER Experiment" has been setup under "Experiments"
- The node has one folder per work package and mirrors the HSE safety folder. Marco noted that RP also be mirrored
- All members of the faser-LS e-group can upload document which can either set to be released by the uploader or go through approval. Only Jamie, Brian and Francisco can create new subfolders
- Released document will be visible to all CERN users
- Fabio suggested to add a project management for non-WP related documents
* Was agreed, but visibility should be considered
- For safety documents related to a specific WP a link will be created between the safety and WP folders
WP1:
- Several visits in TI12 has been carried out
- The cable tray in UJ12 is being lowered this week
- The new passarelle has been manufactured, but needs some modifications at the request of HSE
- A SAS provide has been chosen (ONET). The option of keeping the SAS from the summer to the end of the CE work has been explored. This adds no extra cost and should be compatible with the cable work in the fall as long as the SAS doors are kept open. Jonathan Gall will check ASAP if the SAS specifications are sufficient for the CE works
- The 2 2t hoists on the rails over the UJ12 will be installed in UJ12 on July 8th, and tested the week after. (After the meeting Marzia noted that this means that the passage in UJ12 is not interrupted but perturbed (evacuation must be possible). (A VIC will be needed for this works).
- The schedule is being consolidated and currently planned with no work in parallel and still has one month of contingency
- Depending on how fast the passarelle installation is, the SAS could possible go in already early July
- Caterina noted that the QRL protection is mainly there for transports after LS2 (helium in QRL) and therefore WP1 work can proceed even if QRL protection is not ready in early July. This was confirmed by Marco Andreini (HSE).Removes this item from critical path.
- Open question of when the two hoist beams in TI12 are installed, before or after CE work. It is easier for CE to do it after, but also easier to install them before there is a hole in the ground. To be followed up.
- Jonathan requested that EN-EL map out the HV cable locations where passarelle etc will be installed. Yann will check if this is possible
WP2:
- The core testing is done and no activation was found. The originally foreseen lab for testing the core strength is closed in May, but a workaround has been found and results are expected by end of May.
- Francisco asked if this means the concrete in UJ12 is also not active. However, all cores where done in TI12, so this would need to be checked with RP.
- Based on the ground radar results, it was decided to divert the drainage
- The LMC recommended the full TI12 drainage inspected and cleaned - Jonathan is following up on this (not on FASER budget)
- All of the CE equipment will be lifted over the LHC as there is likely not enough space to slide it under
- The possibility of doing some work in parallel with survey is being discussed, but no conclusion yet
- A schedule was shown, but it assumed 3 week delay on core samples which is no longer the case. Marco explained that the design validation will only be a preliminary sign-off whereas the safety clearance can only be done after the contractor has been selected and procedures agreed (i.e. around end of October). Jonathan will add this to the schedule
- Marco asked about the use of regular steel for the strengthening works. This was considered by the magnet experts and gave only minor (<0.1%) impact on the field. However, this was assuming all the steel is below the magnets while it could also be at the side. Position of this is not clear yet, but would need to be checked by the magnet expert.
- For the CE work there won't be a need for a special survey - it will be included in the work contract, but some survey will be needed for the detector installation to align the experiment along the line of sight at better than 1cm precision. It was unclear which WP this survey will be billed under
- The transport for CE work will be worked out after the design is finished, but is not expected to be an issue
WP3:
- Caterina confirmed they have the resources for installing the detector in the last 2 weeks of May 2020 (as long as fits in LS2 schedule), but noted that some time should be left in the schedule for connecting up the experiment after installation
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