A radiation detector of this invention includes a scintillator for converting an X-ray incident from a surface side into light, at least one photodiode chip having a plurality of photodiodes for converting the converted light into electrical signals, at least one switching chip having a plurality of...http://www.google.ca/patents/US20040071258?utm_source=gb-gplus-sharePatent US20040071258 - Radiation detector, radiation detecting system and X-ray CT apparatus