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Fig. 1 | EJNMMI Physics

Fig. 1

From: Performance evaluation of a novel brain-dedicated SPECT system

Fig. 1

Schematic representation of the InSPira HD system showing the gantry without covers (left) and the collimator configuration (right). The collimator consists of three different detectors along the z direction. The point spread function (PSF) is given by the fractional solid angle of the rays that successfully pass through the collimator. Typically, each PSF has a focal spot where the value is at its maximum (below: 2D view of one of the InSpira PSF functions) (images obtained from Neurologica, USA)

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