Target and target assembly for a camera tube and method of manufacturing same

A camera tube having a radiation permeable window and a semi-conductor target comprising a radiation sensitive-layer having a central portion of given thickness for converting radiation into electrical signals, a radiation permeable electrode on a side of the target exposed to incident radiation, said target having a monocrystalline edge portion thicker than the central radiation sensitive portion, said thicker edge portion having a circuit integrated therein which includes a semi-conductor element for processing electrical signals originating from the permeable electrode, said permeable electrode being d-c connected to an input of the integrated circuit, an annular, electrically insulating support for said semi-conductor target, the side of the edge portion of said target remote from the incident radiation being secured in a vacuum-tight manner to the support, the window being secured in a vacuum-tight manner to said thicker edge portion and overlapping the inner edge of the annular support, and connections of the outputs and leads of the integrated circuit necessary for supply and control voltage being connected to conductive layers extending at least partly outside the window on said thicker edge portion and having connection conductors outside the window.