IPAC2011 - List of Authors (Odier, P.)

Paper	Title	Page
TUPC155	Optimisation of the LHC Beam Current Transformers for Accurate Luminosity Determination	1395
	J-J. Gras, D. Belohrad, M. Ludwig, P. Odier CERN, Geneva, Switzerland C. Barschel RWTH, Aachen, Germany
	During the 2010 and 2011 LHC runs a series of dedicated fills were used for luminosity calibration measurements at each of the LHC experiments. A major contribution to the final precision of these luminosity calibration campaigns originated from the absolute accuracy of the bunch current population estimation. The importance of these measurements for the LHC physics community triggered a large and fruitful collaboration between the CERN Beam Instrumentation Group and the LHC Experiments to push the LHC Beam Current Transformers performance to their limit. This paper will report on the available instruments for beam current measurements, the methodology used to improve them and the results obtained.

Paper

Title

Page

Optimisation of the LHC Beam Current Transformers for Accurate Luminosity Determination

1395

J-J. Gras, D. Belohrad, M. Ludwig, P. Odier
CERN, Geneva, Switzerland
C. Barschel
RWTH, Aachen, Germany

During the 2010 and 2011 LHC runs a series of dedicated fills were used for luminosity calibration measurements at each of the LHC experiments. A major contribution to the final precision of these luminosity calibration campaigns originated from the absolute accuracy of the bunch current population estimation. The importance of these measurements for the LHC physics community triggered a large and fruitful collaboration between the CERN Beam Instrumentation Group and the LHC Experiments to push the LHC Beam Current Transformers performance to their limit. This paper will report on the available instruments for beam current measurements, the methodology used to improve them and the results obtained.