Hard X-Ray Images Created by a Series of Harmonically Related Modulation Collinators

A series of images of hard (30 - 300keV) X-ray sources have been created by use of a multi-pitch rotating modulation collimator (RMC) and a striped NaI(Tl)/CsI(Tl) scintillator detector arrangement. The performance of the system with respect to a series of point and extended objects has been analysed. The implications with respect to space instrumentation are discussed.