Fig. 9From: Development of a novel delivery quality assurance system based on simultaneous verification of dose distribution and binary multi-leaf collimator opening in helical tomotherapyReconstruction of the simple pattern sinogram. a Sinogram calculated by TPS, b Reconstructed sinogram. c Difference between the two sinograms, and the error of the LOT was − 2.2 ± 9.2%. d Histogram of errors and fractions of leaves, indicating that 85.8% of the leaves were detected within 5% of the errorBack to article page