PERFORMANCE OF A LHC FRONT-END RUNNING AT 67 MHZ

The prototype version of a novel front-end system, designed for the re adout of silicon microstrip detectors at the LHC, has been tested usin g 100 GeV pions incident on a microstrip detector in the X5 beam line at CERN. The prototype consisted of preamplifier and shaping amplifier with 45 ns time constant, an 84 cell analogue pipeline and analogue p ulse shape processor, with the individual elements of the system imple mented as separate electronics chips. The timing conditions in the tes t were set up to simulate those in hadron collider experiments and a c lock speed of 67 MHz was used. Deconvolution of particle signals from a silicon detector was successfully demonstrated for the first time in LHC-like experimental conditions.