LHC Beam Operation Workshop - Evian 7-9 December 2010

Session

Session 1: LHC beam operation: review of 2010 and settings the scene for 2011

7 Dec 2010, 16:45

Hilton, Evian

Description

Chair: Roger Bailey; Scientific Secretary: Giulia Papotti

8. Performance and results

M. Ferro-Luzzi

07/12/2010, 16:45

This talk will present what the LHC experiments would like to see in 2011, in terms of delivered luminosity and beam conditions. An attempt will be made to see how this could fit in a run scenario, including a heavy ion run. Special conditions will also be discussed, like sqrt(s) = 2.76 TeV proton physics, medium large beta star proton optics. First feeback on some observations that were...

9. Operational efficiency

W. Venturini Delsolaro

07/12/2010, 17:05

An overlook on the beam and machine statistics in the 2010 run is given. We report on the machine availability and efficiency for physics and give a breakdown of the downtime according to the various technical systems. We revise the frequency and duration of the technical stops with respect to their impact on the machine availability. Finally the tools presently available for the collection of...

34. The LHC RF: Operation 2010 and Plans for 2011

P. Baudrenghien

07/12/2010, 17:25

We will first briefly present the intended RF operation, as of the original Design Report. We will then review the operation 2010: From the first collisions of single bunch pilot to the emittance blow-up required for nominal single-bunch intensity. RF noise will be briefly mentioned and results of bunch lengthening during physics will be presented. The difficulties to fill the machine given...

10. Beam quality and availability from the injectors

G. Papotti

07/12/2010, 17:45

The success of the first year of operation of the LHC would not have been possible without the hard work from the whole injector chain. Beams with different intensity, emittance and bunch spacing have been produced and tuned according to the often varying needs of the LHC. A review of the produced beam parameters is given, as for example transverse and longitudinal emittances, equality between...

39. 50 and 75 ns operation

G. Arduini

07/12/2010, 18:05

Two machine development sessions have been performed in order to understand potential limitations for the operation of the machine with 50 and 75 ns beam spacing. The main results of the studies and a possible outlook for 2011 will be presented.

11. Intensity ramp-up

M. Lamont

07/12/2010, 18:25

Total beam intensity in 2010 saw a slow ramp up during the first months of commissioning. Following bunch train commissioning and qualification the rate increase significantly. A critical look at the year's progress is presented. Given this the potential strategies for 2011 are examined with particular attention given to machine protection qualification. Issues to be addressed include: the ...

12. General discussion

07/12/2010, 18:45