Is this true? I thought they were completely different effects. I thought photodiodes were operated reverse biased and a photon caused current to flow across the junction. The inital electron knocks others out of the semiconductor latice on the way by causing an avalanche, yielding a reasonable number of electrons per photon. This current was then amplified to give a signal, real-time.
Where as a CCD is operated more like a capacitor, unbiased, and it builds up a charge with each additional photon (ideally). After a period of charge integration this cumulative charge is then shifted off and measured.
So can photodiodes be operated in "integrating-mode"?
Chuck