Atomic Energy of Canada Limited / Energie Atomique Du Canada Limitee

Atomic Energy of Canada Limited

Aaron Ho

Liqian Li

Guy Jonkmans

Xiongxin Dai

A portable detection apparatus can include a housing, a first detector for detecting ionizing radiation from a first subject and a second detector within the housing for the detecting the background radiation. A shield within the housing can surround the first and second detectors and define a shield aperture around the first and second detectors for radiation from the subject to enter the housing. A radiation blocking member can substantially block at least a portion of the ionizing radiation from reaching the second detector, whereby radiation detected by the second detector comprises substantially only the background radiation. A processor module can be connected to the first and second detectors for determining the amount of ionizing radiation detected by the first detector attributable to secondary radiation.

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Mississauga, Canada

Aaron Ho