Speaker
V. Kain
Description
The preservation of the transverse emittance is crucial for luminosity performance. At the LHC design stage the total allowed emittance increase was set to 7 % throughout the LHC cycle. The injection process is particularly critical in this respect. Results of an analysis quantifying the emittance increase from injection to stable beams will be presented. The luminosity goals of the 2010 proton run could be achieved with fewer bunches than initially foreseen. This is due to the excellent performance of the injectors concerning the higher than nominal number of protons per bunch and also the smaller than nominal emittances. Smaller emittances mean more energy density, possible machine protection concerns will be addressed in this presentation. Recommendations for required instrumentation and emittance preservation goals for next year’s run will be given.
