Experimental Areas Technical Meeting EATM, 1 Sep 2015 CLOUD news Antti Onnela, PH-DT, CLOUD Technical and Resource coordinator, GLIMOS

CLOUD programme in 2015 Spring 2015: CLOUD10-T technical run – completed April: Instruments arrive and installed on the CLOUD platform 20 April – 20 May with contingency up to 7 June: Run 21 May -8 June: Instruments depart 15 June – 6 July: T11 used by P349 experiment – run completed, P349 equipment removed from T11 July 2015: Installation of UV Laser for CLOUD in T11. – completed Autumn 2015: CLOUD10 physics run September: Instrument arrival, installation and commissioning o Note: The largest amount of instruments in any CLOUD run until now 21 September – 14 December: Run (last 4 weeks with cosmics only, no beam) December: Instruments depart EATM, / CLOUD, A.Onnela2

Towards the CLOUD autumn run Replacement of the exhaust ducts by rigid ones. Contacts for this project: Antti Onnela / CLOUD, Francisco Josa / EN-CV EATM, / CLOUD, A.Onnela3 On the building balcony: Removal of two of the three flexible ducts. A second exhaust fan to be installed. New exhaust duct routing

Towards the CLOUD autumn run Replacement of the exhaust ducts by rigid ones. Contacts for this project: Antti Onnela / CLOUD, Francisco Josa / EN-CV Reserve this space for CLOUD use in - Sep-Dec 2015 EATM, / CLOUD, A.Onnela4 On the building balcony: Removal of two of the three flexible ducts. A second exhaust fan to be installed. New exhaust duct routing