"high energy - used for nuclides emitting photons > 250 keV"
"parallel hole - multiple holes which run parallel to each other (most common design)."
"pinhole - single hole with a single aperture, providing a magnified and inverted image with superior spatial resolution but lower sensitivity when compared with a parallel hole collimator. Used in imaging small structures."
"converging - multiple holes which converge onto a central point, providing a magnified image with improved spatial resolution. Used in imaging small structures."
"diverging - multiple holes which fan away from the centre, providing a minified image. Used in whole body imaging where a larger field of view is required."
Expected headings
"Types"
"Design"