Opto-Electronic Delay for the Readout of Particle Tracks from Scintillating Fibres

Abstract

Due to the high-event rate envisaged in future hadron colliders, the opto-electronic readout of a scintillating fibre tracker will need a device, able to pipeline optical images during the first-level trigger decision time. We describe in this paper the principle of a gatable opto-electronic delay line. Two prototypes are also presented, and preliminary results confirm the expected space resolution and the capability of this device to delay optical images and select them by external trigger signals. Finally, different readout scenarios are discussed.

The work reported here is part of the LAA project.