GEOMETRIC EFFICIENCY OF A ROTATING SLIT-COLLIMATOR FOR IMPROVED PLANAR GAMMA-CAMERA IMAGING

Citation
S. Webb et al., GEOMETRIC EFFICIENCY OF A ROTATING SLIT-COLLIMATOR FOR IMPROVED PLANAR GAMMA-CAMERA IMAGING, Physics in medicine and biology, 38(5), 1993, pp. 627-638
Citations number
11
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging
ISSN journal
00319155
Volume
38
Issue
5
Year of publication
1993
Pages
627 - 638
Database
ISI
SICI code
0031-9155(1993)38:5<627:GEOARS>2.0.ZU;2-Y
Abstract
This note 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 und er specific geometric conditions for which an algebraic analysis can b e made. The expressions are limiting cases and have been validated by numerical computation for some specific cases.