Figure 2
Timeline of X-ray excitation and visible light emission during acquisition. The three aligned axes in this figure show the temporal structure of the light intensity at each stage in the conversion process: (a) the X-ray bunch structure in 24-bunch mode, with a 90 ps X-ray bunch arriving at the detector every 153.4 ns; (b) the modeled emission from the LSO:Ce X-ray phosphor under illumination from this X-ray bunch pattern; and (c) the modeled response of the P47 phosphor to the LSO:Ce emission as well as the timing of the ICCD gates to collect the P47 emission. The ICCD gating windows are shown by the shaded blue regions. The ICCD gates are delayed from the experimental trigger to capture the data of interest and to optimize the collection of emission from each X-ray bunch. |