Detektorzelle, Detektor, Sensor für Spektroskop

The present invention relates mainly to a detector cell, to a matrix detector using such cells, to a sensor including such a detector and to a spectroscope including such a sensor. The subject of the invention is a cell for detecting photons including a superconducting element, especially of niobium, sensitive to the photons (9) of the radiation to be detected or to phonons generated by such a photon (9), especially by separation of Cooper pairs into quasi-particles and a tunnel-effect superconducting junction (15) comprising a superconducting electrode, characterised in that it is bounded by a plurality of spaced, tunnel-effect superconducting junctions (15), distributed at the periphery of the cell (21). The device according to the present invention applies to counting photons, and thus mainly to the acquisition and processing of information originating from weak radiation sources.