LIR Garcia… - Medical Physics, 2011 - link.aip.org ... Measuring the TPR is time consuming when automatic hardware is not available. For this reason, TPR is commonly derived from related measurements, as in Eq. , which use the depth dose (DD) and the scatterphantom (Sp) ratio: where r is the field size at the isocenter, s is the ... Related articles
S Kimura, K Sutoh, K Kamimura, A Iwasaki… - 2011 - cat.inist.fr ... The method uses primary and scatter dose kernels formed for energy bins of X-ray spectra reconstructed as a function of off-axis ... and measurements in water phantoms and thorax-like phantoms with respect to percentage depth dose curves, tissue–phantomratio curves, and ...
X Liu, CC Shaw, CJ Lai… - Medical Physics, 2011 - link.aip.org ... to separate the primary intensities from the total image signals and to estimate scatter-to-primary ... of the chest phantom image instead of measuring image lines across the chest phantom image with ... noise levels in this study instead of using primary signal-to-noise ratio (PSNR) to ... Related articles - All 3 versions
BW Jakoby, Y Bercier, M Conti… - Physics in Medicine …, 2011 - iopscience.iop.org ... all spheres. The percent residual error for the attenuation and scatter corrections was computed as the ratio of the average counts in the lung insert and the average counts in the background of the phantom. Details on these ... Related articles - All 4 versions
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