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AWAKE spectrometer meeting
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Europe/Zurich
14/4-030 (CERN)
Present: Candy, Fearghus, Ishkhan, Lawrence, Marco, Matthew, Nicolas, Simon, Stefano
Nicolas - Mirror supports
- Supports look okay, also the vibrational analysis (see later) so we are close to launching production.
- Adjustment holder for 3 mirrors is ready.
- Large support frame needs one more week, so realistically finish end of next week.
-> Need to circulate final designs so people can check and sign off.
- Need to show to CERN workshop and they then decide whether they can do it or need to get an outside company.
- Cost ~ 10 kCHF.
- Have all supports by end of July.
-> Position in tunnel ? And pre-alignment ? Mark floor in the hall ? All to start soon.
All needed for installation end of August, beginning of September.
Marco - vibrational analysis
- See document on vibration analysis.
- Blur of 3.6 mum (+-1.8 mum) in diameter is how much the image will move at the camera lens. This is insignificant. Also exposure-time dependent so can have shot-to-shot fluctuations.
All - Dark room
- Ishkhan in touch with company on laser curtains and waiting to hear back about fire safety.
-> Once we know whether it is in principle possible, can then proceed further.
- Also discussed having lights off and a failsafe in the camera to ensure the MPC does not trigger if lights are on.
-> Assess how effective this failsafe is.
-> Fearghus to make a list of pros and cons.
Ishkhan - scintillator screen
- Screen should be cut to size by early next week and will then return to Fearghus.
Meeting again in ~two weeks when more progress on the above
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