An insulated gate field effect transistor dosimeter has a source and drain defining a channel region, a floating gate having a first portion extending over the channel region, and a second, larger portion extending away from said region, a control gate having at least a portion thereof overlapping a...http://www.google.de/patents/US6172368?utm_source=gb-gplus-sharePatent US6172368 - Method of monitoring radiation using a floating gate field effect transistor dosimeter, and dosimeter for use therein
