Multiple Compton scattering gamma ray imaging camera

Abstract

With the recent advances in position sensing detectors, a compact, multiple layered, Compton scattering gamma ray imaging camera has been investigated for technological feasibility. Beginning from Kamea and Hanada's recent work, the multiple Compton scattering camera design has been investigated and refined over the energy range 150-1000 keV. Our Monte Carlo simulations yielded reconstruction efficiencies of 7-14% for Si and 16-28% for Ge detectors. Including anticipated experimental errors, we obtained angular errors of ∼2-5° in the reconstructed incident gamma ray directions over the energy range of interest. © 1990.