12–14 Dec 2011
Royal Hotel
Europe/Zurich timezone

Emittance preservation in LHC: Present understanding, possible improvements/gains, required diagnostics

13 Dec 2011, 08:55
25m
Salon Edelweiss/Hélianthème (Royal Hotel)

Salon Edelweiss/Hélianthème

Royal Hotel

Evian-les-Bains

Speaker

Verena Kain

Description

Emittance measurements during the LHC proton run 2011 indicated a blow-up of 20 % to 30 % from LHC injection to collisions. At the LHC design stage the total allowed emittance increase from SPS extraction to colliding beams was set to 7 %. This presentation will show the emittance preservation throughout the different parts of the LHC cycle and discuss the current limitations on emittance determination. Possible sources and cures for the observed blow-up will be presented. Possible improvements of emittance diagnostics and analysis tools together with a list of machine development tests in 2012 will also be shown.

Presentation materials