Measurements of SPS Single-Bunch Coherent Tune Shifts and Head-Tail Growth Rates in the Year 2000

There are considerable efforts to reduce the SPS impedance in view of its future use as LHC injector. They are followed experimentally by a series of measurements, started in 1999 and continued and further refined in 2000. In addition to measurements at 26 GeV, we had also an opportunity to take data at 120 GeV, which allows checks on a possible energy dependent bias from space-charge effect.