High energy gamma probe with position sensing capability

Details High energy gamma probe with position sensing capability High energy gamma probe with position sensing capability

2007-12-25

2007-12-25

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

With radiant energy source

Reexamination Certificate

active

11125190

ABSTRACT:
The present invention relates to a method of detecting and localizing gamma radiation from a target source in the possible presence of background gamma radiation, said method comprising the steps of:a) detecting the directional intensity distribution of gamma rays with respect to a preferred direction,b) analysing the direction dependence, correcting for efficiency and solid angle of the detection means,c) determining the amount and spatial distribution of background radiation,d) determining the background contribution of the intensity measured in the preferred direction from the amount and spatial distribution of background radiation,e) determining the strength of gamma radiation in a preferred direction by subtracting from the intensity measured in the preferred direction any background contribution from non preferred directions.

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H. Wengenmair et al., Der Nuklearmediziner Nr. 4, 22 (1999), 271.

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