Abstract:Current hole matching pixel detector (HMPD)
collimators for SPECT imaging exist in two configurations: one hole per pixel
(1HMPD) or four holes per pixel (4HMPD). The aim of this study was to assess
the performance of a dual-layer collimator made by stacking up these two
collimator types (1H/4HMDP) for low and medium-energy gamma emitters.
Analytical equations describing 1H/4HMDP collimator geometrical efficiency and
full width at half maximum (FWHM) were derived. In addition, a fast dedicated
gamma ray-tracin… Show more
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