H8236-07 Overview
HPD (HYBRID PHOTO-DETECTOR) MODULES PRELIMINARY DATA OCT. 2000 H8236-07, -40 PATENT PENDING The HPD (Hybrid Photo-Detector) is a new vacuum photo-detector including a photocathode and an avalanche diode. The HPD provides a gain of more than 1000 in a single multiplication process called 'electron bombardment multiplication'.