Gamma Camera Distortion Phantom Leeds Test Objects

Rigid PMMA phantom for the quality control of geometric distortion and spatial resolution of gamma cameras
consists of a series of 1mm dia. 3mm deep holes at 80mm pitch
when filled with activity, allows the user to perform:
Point-to-point measurement to ensure accurate representation of true distances in the image
Measurement of the point spread function (psf) at each point to determine spatial resolution, and its homogeneity across the entire FOV
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