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Electronics Schematics - S

Smoke Detecting Circuits - Sensors and Detectors

Circuit forms gamma photon detector: 04/24/03  EDN-Design Ideas / The circuit of Figure 1 includes a PIN photodiode that detects individual photons of gamma radiation. The reverse bias on the photodiode sometimes creates a depletion region. When such a photon strikes this depletion region, a small amount of charge develops. This charge is proportional to the photon's energy.



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