Some Highlights and Trends in the Field of Superconducting Junction Radiation Detectors

The aim of this paper is to review some aspects of Superconductive Tunnel Junctions (STJ) detectors. Principles and performances of such devices in the context of high energy resolution are briefly discussed. Some considerations concerning the possibility of employing the Josephson current as a probe of the excitation produced by the absorbed radiation is also reported. Elements of the nonequilibrium theoretical aspects concerning radiation interaction with a Josephson system are proposed together with very preliminary experimental attempts.