A system of gamma ray imaging devices with coded apertures Christos Papadimitropoulos, Ioannis Kaissas, Konstantinos Karafasoulis, Constantinos Potiriadis and Charalambos P. Lambropoulos MATEC Web of Conferences, 41 (2016) 03001 Published online: 01 February 2016 DOI: 10.1051/matecconf/20164103001