A Pixel Telescope for Detector R&D

A high resolution (sigma < 3 mum) beam telescope based on pixel sensors is being developed within the EUDET collaboration, a coordinated detector R&D programme for a future international linear collider. The telescope will consist of up to six sensor planes and can be operated inside a solenoidal magnetic field of up to 1.2 T. A general purpose cooling, positioning and readout infrastructure will be available. The telescope and the magnet will initially be installed at a 6 GeV electron beam line at DESY in Hamburg. However, the setup will be sufficiently flexible to be moved to higher energy hadron beam lines, for instance at CERN, in the future. Thus the telescope will provide a test environment for a wide variety of pixellated sensor technologies, while at the same time acting as a realistic test bed for tracking studies for a vertex detector at a future linear collider. In this presentation the status of the first demonstrator telescope will be summarised. The mechanical concept as well as the DAQ system will be presented.

I. Introduction

A 500 GeV electron-positron linear collider is the next great international project in High Energy Physics. The current plan foresees that the machine would have to be approved in 2010 and possibly commence operation not earlier than 2017.