Orateur
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.
Auteur principal
Prof.
Gisela Anton
(Erlangen Centre for Astroparticle Physics)
Co-auteurs
Dr
Thilo Michel
(Erlangen Centre for Astroparticle Physics)
M.
Tilman Ruegheimer
(Erlangen Centre for Astroparticle Physics)
