Fig. 3
From: Efficient spectral data reduction for accurate iodine quantification in multi-energy CT
Demonstration of the effect of the ratio d140/d140+80, while d140+80 is held constant (left). The duty cycle experiences an exponential positive change as d140/d140+80 increases (center). Duty cycle ratios near zero or one demonstrate high estimated noise for kVp-S and four-channel estimator (right). A 0.5 dose ratio of d140/d140+80 roughly corresponds to a 10/90 duty cycle.
