Beam diagnostics for the Amsterdam pulse stretcher AmPS

AmPS is an electron storage and pulse stretcher ring operating between 300 and 900 MeV with stored beam currents up to 200 mA. For beam diagnostics the AmPS ring has been provided with 32 stripline beam position monitors, 17 low beam impedance designed screens, a DCCT and 4 synchrotron light ports. In addition 3 scanning wires for injection control, 32 air filled ionisation chambers for beam loss control, a kicker for tune measurements and a harmonic shaker have been implemented. The purpose, design and performance of these devices will be described. The data acquisition for closed orbit correction and tune measurement will be presented as well.