… skin doses seen in MRI‐guided radiotherapy. In particular, the authors aim to characterize
the skin doses over a larger range of magnetic field strength and x‐ray field size than in the …

… be an increase or a decrease depending on the magnetic field strength, electron energies,
field size, the obliquity of the interface and size of the gap compared to the helical path radius […

… The choice of the aforementioned field sizes was made because our MRI Linac will focus
primarily on ablative SBRT type treatments where smaller field sizes will be used. …

… does not significantly change the FWHM (≤0.1 mm), however there is an increase in
penumbral width, particularly on the right hand side of profiles for the smallest field sizes. As the …

… The remaining two cases had a longitudinal extension of 22.0cm and 22.6cm, respectively,
exceeding the maximum superior-inferior field size of 22cm of the MRI-linac. Plan realization …

… film PDD collected on an Elekta linear accelerator in no magnetic field. The increase in dose
at … field, which was shown to increase with both field size and the magnitude of the magnetic …

… field sizes set in the MLC control software had to be determined. It was obtained by the
measurement of the actual field sizes produced by a set of square fields … as nominal field sizes, …

… This study investigates the influence of an MRI linac fringe field on … after changes of the
magnetic field of the MRI linac. … neighbouring linacs and the MR-Linac determines the size of …

… given field size at the isocenter decreases as the MLC and linac are positioned at larger SID.
Therefore, the MLC aperture was scaled inversely with increasing SID to keep the field size …

… MRI-linac penumbra (20%–80%) widths for each field edge for several standard field sizes
are … Also shown is a comparison between the MRI-linac and an Agility 6 MV FFF beam, …