12-16 September 2005
University of Liverpool
Europe/Zurich timezone

Beam Test and Simulation of Prototypes for the ALICE Silicon Pixel Detector

Sep 12, 2005, 5:00 PM
University of Liverpool

University of Liverpool

Greenbank Conference Park
Contributed Talk Pixel Detectors for Charged Particles S2 : Pixel Detectors for Charged Particles


Dr Jan Conrad (PH/EP Dept., CERN)


The silicon pixel detector (SPD) of the ALICE experiment in preparation at the Large Hadron Collider (LHC) at CERN is designed to provide the excellent vertex resolution needed for measuring heavy avour production in heavy ion collisions at very high energies and high multiplicity. The detector consists of 1200 read out ASICs, each consisting of 8192 pixels, bump-bonded to 200 _m thick silicon sensors. The SPD forms the innermost part of the Inner Tracking System (ITS), which also includes silicon drift and silicon strip detectors. Single assembly prototypes of the ALICE SPD have been tested at the CERN SPS using high energy proton/pion beams in 2002 and 2003. We report on the experimental determination of spatial precision and detector e_ciency obtained from these tests. We also report on the _rst combined beam test of the pixel prototypes, together with prototypes of the other ITS silicon technologies, at the CERN SPS in November 2004. The issue of SPD simulation using GEANT and FLUKA is briey discussed.

Primary author

Dr Jan Conrad (PH/EP Dept., CERN)

Presentation materials