title: Feasibility study for a low-cost 3D gamma-ray camera.
abstract: A novel gamma-ray camera is proposed based on Positron Annihilation Compton Scattering Imaging (PACSI). The camera comprises a positron source and a fast, position-sensitive gamma-ray detector. Monte Carlo simulations of the camera have demonstrated that it should be capable of forming 3-D images of objects that can only be viewed from one side. A simple 1-D PACSI camera has been constructed and tested in the laboratory. Prospects for the construction of a full 3-D prototype camera are discussed.
authors.affiliation: CSIRO Minerals, PMB 5, Menai, NSW 2234, Australia. james.tickner@csiro.au
authors.forename: J R
authors.initials: JR
authors.lastname: Tickner
authors.forename: M P
authors.initials: MP
authors.lastname: Currie
authors.forename: G J
authors.initials: GJ
authors.lastname: Roach