DEVICE FOR DETECTING THE DISINTEGRATION OF RADIOISOTOPES IN BIOLOGICAL TISSUE

摘要

The device has a detection unit (10) in the form of a needle, comprising complementary MOS type or three-dimensional elementary detectors e.g. reverse polarized diodes, where the unit is made of semi-conductor material. Counting, thresholding, filtering, converting and amplifying circuit i.e. signal processing unit (14), is connected to the detectors and is carried by an animal e.g. rat, that is free from movements. The detection unit includes a substrate (20) forming a needle, that is made of semi-conductor material with high resistivity carrying set of electrodes forming the detectors.