Fig. 8.
(A) Layout of the TCNQ phantom (in mm). (B) 2D images using Frank sequence encoding, Hadamard sequence encoding, and conventional single pulse system configurations using identical parameters. Gradient signals were set to 1.8 G/cm. The data was acquired as 169 projections and final images are 256 × 256 pixels. (C) Histograms of the upper half of each image to estimate background level with Frank sequence encoding, Hadamard sequence encoding, and conventional single pulse system configurations. (D) Computed signal-to-noise ratio of images (in dB) with Frank sequence encoding, Hadamard sequence encoding, and conventional single pulse system configurations.