Wednesday 8 October 2014 

Speaker: Francisca Munoz Sanchez (Manchester University)


Title: "Study of New Silicon Sensors for Experiments at Future Particle Colliders" 

Abstract: In this talk, after a brief overview of the state of the art in silicon 
detectors for High Energy Physics Colliders, I’ll focus in two novel technologies:
- Two-dimensional position sensitive microstrip sensors. In this technology the 
concept of the resistive charge division very commonly used in wire chambers is 
transferred to microstrip sensors, where the standard metallic electrode is 
replaced by resistive polysilicon. The concept, simulation and characterisation 
will be presented.
- 3D pixel sensors. In this technology, the standard geometrical distribution 
of electrodes in the silicon bulk is changed. Instead of having electrodes at 
the opposite sides of the sensors, they are columns embedded in the silicon bulk. 
Thanks to this, the distance between them is not set by the sensor thickness, 
offering some advantages vs planar technologies in terms of operation voltage 
and radiation hardness. The description of this technology and results of its 
sensor characterisation will be explained in detail as well.