Patent ID: 6448559
Filing Date: 2002-09-10
Classification: A61B,G01T

Abstract:
A detector assembly for multi-modality scanners for detecting low energy radiation and low and high energy gammas emitted from a source under investigation, the detector assembly comprising;a low energy radiation detector substantially transparent to the low and high energy gammas but responsive to the low energy radiation from the source, said low energy radiation detector producing, in response to said low energy radiation, first radiation characterizing signals; a low energy gamma detector located downstream from said low energy radiation detector and responsive to low energy gammas from the source, said low energy gamma detector producing, in response to said low energy gammas, second radiation characterizing signals; and a high energy gamma detector located downstream from said low energy gamma detector and responsive to high energy gammas from the source, said high energy gamma detector producing, in response to the high energy gammas, third radiation characterizing signals.