AWAKE spectrometer meeting
Spectrometer meeting - 10/11/2016
Present:
Stefano, Thomas (CERN)
Lawrence, Matthew, Michele, Simon (UCL)
Thomas
- See plots.
- Aluminium only is uniform to 0.5%.
- With quartz coating uniformity is 2%.
- Quartz can be more easily cleaned, but will be more affected by radiation (browning). Al can be easily re-coated, quartz not. Reflectivity with quartz coating is a few % lower.
-> Mirror samples in the AWAKE area and will see how they are affected. Take out at end of run and measure their performance.
-> For CERN to do coating, would need contribution of ~8000 CHF for 6 mirrors.
Stefano
- Gravity curvatures do not affect mirror perfomance.
- All agreed that Stefano’s simulations and report were complete and that we could proceed with purchasing mirrors as specified in his report.
-> To get a quote for 2, 3, ... per mirror and uncoated or Al coated.
Lawrence
- Presentation in TB next week on backgrounds.
- IEEE paper can be contribution or peer review; will go for peer review.
Next meeting: Tuesday 29 November, 14:00 / 15:00 (UK / CERN)