Purpose: There is interest in developing linac‐MR systems for MRI‐guided radiation
therapy. To date, the designs for such linac‐MR devices have been restricted to a transverse …

A novel geometry has been proposed for a hybrid magnetic resonance imaging (MRI)‐linac
system in which a 6 MV linac is mounted on the open end of a biplanar, low field (0.2 T) MRI …

Purpose: To report on significant dose enhancement effects caused by magnetic fields
aligned parallel to 6 MV photon beam radiotherapy of small lung tumors. Findings are …

Background and purpose To present experimental evidence of lung dose enhancement
effects caused by strong inline magnetic fields. Materials and methods A permanent magnet …

Several institutes are currently working on the development of a radiotherapy treatment
system with online MR imaging (MRI) modality. The main difference between their designs is …

The MRI-linear accelerator system, currently being developed, is designed such that the
patient is irradiated in the presence of a magnetic field. This influences the dose distribution …

Purpose: The integration of MRI with a linear accelerator (MR‐linac) offers great potential for
high‐precision delivery of radiation therapy (RT). However, the electron deflection resulting …

Purpose: This paper provides a comparison between a fast, commercial, in‐patient Monte
Carlo dose calculation algorithm (GPUMCD) and geant4. It also evaluates the dosimetric …

Purpose: The magnetic fields of linac‐MR systems modify the path of contaminant electrons
in photon beams, which alters patient skin dose. To accurately quantify the magnitude of …

At the UMC Utrecht, in collaboration with Elekta and Philips Research Hamburg, we are
developing a radiotherapy accelerator with integrated MRI functionality. The radiation dose …