Apr 22 – 24, 2008
Palais Neptune Conference Center, Toulon
Europe/Paris timezone

A hybrid photodetector using the TIMEPIX pixel semiconductor for photoelectron detection

Apr 23, 2008, 12:00 PM
30m
Salle Raimu-B (Palais Neptune Conference Center, Toulon)

Salle Raimu-B

Palais Neptune Conference Center, Toulon

Palais des Congrès Neptune Place de Besagne Centre Commercial Mayol
Contributed talk Parallel Session on Photodetection Parallel session on Photodetection

Speaker

Prof. Gisela Anton (Erlangen Centre for Astroparticle Physics)

Description

A new concept of a hybrid photodetector is presented. It consists of a standard photocathode combined with the TIMEPIX semiconductor detector. The photoelectron is accelerated in a field of 10 to 20 keV to the silicon sensor of the TIMEPIX. The photoelectron generates electron-hole pairs in the silicon which are directed to the pixel electronics of the TIMEPIX ASIC. This charge signal is compared to a threshold and accordingly starts the counting of clock pulses until the end of a frame time. The TIMEPIX contains 65000 parallel working pixels of 55 microns pixel pitch. This hybrid photodetector enables the time measurements of each single photoelectron and gives a direct digital output of this information.

Primary author

Prof. Gisela Anton (Erlangen Centre for Astroparticle Physics)

Co-authors

Dr Thilo Michel (Erlangen Centre for Astroparticle Physics) Mr Tilman Ruegheimer (Erlangen Centre for Astroparticle Physics)

Presentation materials