Sensor device and imaging system for detecting radiation signals

A sensor device for detecting X-ray radiation signals, comprising

• a sensor array comprising a plurality of detectors, the plurality of detectors include a first detector and a second detector adjacent to said first detector, wherein each detector comprising:
• a receiver surface for receiving a plurality of radiation signals transmitted through or emanating from a subject;
• a sensor element for converting said received plurality of radiation signals into a plurality of corresponding electric signals;
• an interposer element extending laterally between a first side and a second side, said interposer element comprising a front surface facing said sensor element and a back surface parallel to said front surface, wherein said interposer element comprises a front contact arrangement on said front surface, a back contact arrangement on said back surface, and an extrusion comprising an extrusion surface;
• wherein said front contact arrangement directs said plurality of electric signals to said back contact arrangement;
• and
• an integrated circuit element facing said back surface and electrically connected to said back contact arrangement, said integrated circuit element comprising a circuit portion extending laterally over said back surface on said second side;
• wherein said front surface extending laterally over said back surface on said first side by said extrusion, said circuit portion of said first detector overlapping vertically with and being vertically spaced from said extrusion surface of said second detector.