eldorado.tu-dortmund.de/items/bd252e69-ffba-4a1e-8ea7-869343d7a5e4/full
Technical note: Accuracy of MTF measurements with an edge phantom at megavoltage x-ray energies
imaging device (EPID) was measured at 6 MV beam quality with four edge phantoms made of lead with 1.3, 3.3, 5.0, and 10.0 cm thickness. Monte Carlo simulations were carried out for these and a selection of [...] from 4.0 cm thick tungsten or 5.0 cm thick lead induce comparatively small systematic errors of below 3% or 5%, respectively. Conclusions: When MTF measurements are conducted at MV energies, even a highly …
