Geometric efficiency of a rotating slit-collimator for improved planar gamma-camera imaging

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, , Citation S Webb et al 1993 Phys. Med. Biol. 38 627 DOI 10.1088/0031-9155/38/5/005

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1 Joint Dept. of Phys., Inst. of Cancer Res. & R. Marsden Hospital, Sutton, UK

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0031-9155/38/5/627

Abstract

Derives several expressions for the geometric efficiency of a rotating collimator, comprising a set of parallel slits, for a gamma camera. These expressions represent approximate analytic formulae under specific geometric conditions for which an algebraic analysis can be made. The expressions are limiting cases and have been validated by numerical computation for some specific cases.

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