Betatron squeeze: status, strategy and issues

The betatron squeeze will be one of the most critical manipulation of the LHC beams and has required dedicate implementations in the LHC control system. At the end of the 2009 operation, a squeeze test with beam was performed at 1.18 TeV to verify the mechanics of the squeeze and the developed tools. This also gave the opportunity to have a first set of measurements with squeezed beams. In this paper, we review the status of the squeeze implementation, with particular emphasis on the issues for the 2010 operation, and we present the results of beam measurements.