Patent ID: 7547889
Filing Date: 2009-06-16
Classification: G01T

Abstract:
1. A photon detection device adapted to detect at least one packet of photons, said photon detection device comprising: a photon-sensitive element having an output, said photon-sensitive element generating charges upon the engagement of at least one photon packet therewith; an amplifier; and a non-linear feedback (NLF) element; wherein an increase from a first number of charges in said photon-sensitive element to a second number of charges, results in a corresponding increase of a first reset time required to reset said first number of charges to a respective second reset time required to reset said second number of charges in said photon-sensitive element; and wherein said amplifier and said NLF element are responsively coupled to said photon-sensitive element, such that a first ratio between said first reset time and said first number of charges is higher than a second ratio between said second reset time and said second number of charges, at least up to a number of N