DETECTION THRESHOLD IN POLYMERS

The replica technique for the observation of tracks by TEM. allowed th e study of tracks in Makrofol E in regions of energy virtually ''forbi dden'' by the traditional registration models. One or both critical ex tremes of energy where analyzed for particles such as protons, helium, deuterons and lithium, trying to find a correlation with any or the c ommonly proposed parameters to test detection threshold. Based on data at submicroscopic level the concept or threshold origin is discussed.