ANALOG DETECTION FOR CAVITY LIFETIME SPECTROSCOPY

摘要

An analog detection system for determining a ring-down rate or decay rate wherein a detected analog signal (163) is sent to a processing sub-system (108) comprising a converter (166) for converting an exponentially decaying analog signal to a linear analog signal and a differentiation (170) for obtaining its slope and an analog decay rate determination circuit (172) which receives the value of the slope of signal (168) to obtain the decay rate.