WIDEBAND_RADIATION_MONITOR

Published:2009/6/25 5:09:00 Author:May | From:SeekIC

A sensitive radiation monitor may be sim-ply constructed with a large-area photodiode and a quad operational amplifier. Replacing the glass window of the diode with Mylar foil wili shield it from light and infrared energy,enabbling it to respond to such nuclear radiation as alpha and beta particles and gamma rays. A4 integrates the output of A3 In order to drive amlcroammeter，Al microfarad capacitor isused in the integratingnetwork．A lower value,say,33 nanofarads,will make it possible todrive a small loudspeaker (50-hertz output signal) or light-emitting diode．



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