Sub 60 ps timing resolution using large area Silicon Avalanche Diodes

摘要

The new generation of planned experiments in high energy and nuclear physics requires high pixel density time-of-flight detection systems which mark the occurrence of an event with sub-100 ps accuracy. Conventional fast phototubes and scintillators do not easily lend themselves to large scale mechanical and electrical integration and generally prove to be very expensive. As an alternative technology, we report on the development and optimization of Silicon Avalanche Diodes (AVDs). The project is in part strongly motivated by the STAR experiment planned for the Relativistic Heavy Ion Collider (RHIC) facility at BNL. The time-of-flight component of STAR is expected to operate in a 0.5T magnetic field and is highly segmented.