Fig. 5: Spatial resolution evaluation with line pair (LP) profile and slanted edge method. | Communications Engineering

Fig. 5: Spatial resolution evaluation with line pair (LP) profile and slanted edge method.

From: An energy-resolving photon-counting X-ray detector for computed tomography combining silicon-photomultiplier arrays and scintillation crystals

Fig. 5

a shows the measured LP profile of gauge (Moriyama TYP11) with different tube voltages (35, 40, 60, 80, and 100 kV) for 0.5, 1.0, 1.5, 2.0, and 2.5 LP/mm2 from left to right; b shows the modulation transfer function (MTF) 10% plot for each tube voltage showing ~2.9 LP/mm. The values are summarized in Table 3. c shows the spatial resolution with the slanted edge method with FWHM (full-width-half-maximum) and MTF(10%). The summarized values are shown in Table 4.

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