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AWAKE spectrometer meeting
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Europe/Zurich
Present: Fearghus, Ishkhan, Lawrence, Matthew, Michele, Simon, Stefano,
Stefano
- Vibrational studies, see document on indico.
- Bottom line is image displacement of 3.6 mum which looks to be no problem.
-> What is "image displacement" ? Need to clarify.
- Assuming this is okay, then can sign off on the mounts.
- So we expect to not see any issues for a given shot, but may see some small shot-to-shot variations.
- Received filters for camera lens.
-> To be mounted
Ishkhan
- Can cut screens. Material and dimensions which been provided.
-> Just cut one first.
-> Fearghus to check dimensions of screen received.
Fearghus
Dark room around camera.
- Price estimate of 25 kCHF.
-> What are the itemised costs ? Still do not understand why it is so much
- [Spencer] proposed having dark curtains which are dark and fire safe.
-> Issue: radiation safety. Ans in discussion with company.
-> Issue: can they match the geometry of the area.
-> Have a solid piece around ventilation pipe to make light-tight ?
-> Ventilation in the area ?
-> Fearghus asked for a quote of one of his designs.
Window in fire door
-> Requested quotes for a glass window of different thicknesses.
Optical table
- Ans would like us to have a smaller table. May come back to.
Michele
Choice of scope
- See slides
- Choice of LeCroy and Tektronix
-> Michele prefers LeCroy as the control program looks well thought out. Tektronix has a web interface.
-> [Fearghus] to request LeCroy scope.
Lawrence
- Shielding for spectrometer system with a collimator in front of quadrupoles.
- Can reduce backgrounds by up to factor of 10.
-> Back-scattering for the other diagnostics in front of it ?
-> Can we effectively have shielding (e.g. concrete) on one side ?
Next meeting on 26/Apr at 13:00 in CERN, room tba
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