Fig. 1From: Characterisation of a hand-held CZT-based gamma camera for 177Lu imagingEnergy resolution as a function of the photon energy for acquisitions made in low-energy mode and high-energy mode. Results determined by fitting of Gaussian functions (a) and by the NEMA interpolation procedure (b) are shown. Markers indicate the measured values, while the lines show the linear regressions (Eq. 6)Back to article page