1. Compressor status AWAKE Technical Board meeting 19 August 2015

2. Technical Offers from Amplitude Technology February 2015 – “Standard” vacuum chamber D=1500 mm April 2015: – Space limitation of CERN installation taken into account: “Reduced size” vacuum chamber D=1300 mm is offered June 2015: – Compressor vacuum chamber is ordered July 2015: – Offer for optical compressor agreed 18 August 2015: – 3D-drawing of the compressor chamber received for approval Details in EDMS document 1481751

3. Design of compressor chamber for CERN by Amplitude

4. First coupling of AMPLITUDE and CERN drawings (today by Nicolas Chritin) To be checked by integration team

5. Heights of beams Heights for optical tables defined: H table = 875 mm Quotation requests sent to 3 firms: Thorlabs, Opta, Newport

6. Tentative schedule  Study in the research department to adapt the position of the window: four (4) weeks.  Manufacturing at the supplier’s site: seventeen (17) weeks, including summer holidays.  Test at Amplitude Technologies: two (2) weeks  Packing: one (1) week.  Installation on-site: one (1) week.  Compatible with 6 months delivery order if the order is placed soon. Time for transport is not considered. Order in June -- > Delivery in December From now => end of December January of February ?

7. Essentials form the compressor optics offer

8. Content of the Amplitude compressor package  The vacuum vessel with external diameter of Ø1300 mm.  The support to hold the vacuum vessel (height to be defined).  The internal breadboard and the support to accommodate the mechanical mounts of the compressor.  The place for four windows (input beam, output beam, diagnostic beam, and leak).  The place for the vacuum pumps (two flanges) and two flanges for the detectors.  A test report of the vacuum compatibility of the vacuum chamber will be supplied following Amplitude Technologies quality process (inspection of the vacuum chamber with mass spectrometer for the detection of pollutant).  The installation on-site is included (two days). The optical compressor with the optical components (including the windows) and the mechanical mounts are not included. The vacuum pump, the detectors and the controllers are not included and will be integrated by the purchaser.

9. New layout of vacuum vessel