Purpose Dose deposition around unplanned air cavities during magnetic resonance‐guided
radiotherapy (MRgRT) is influenced by the electron return effect (ERE). This is clinically …

Purpose Magnetic resonance guidance in proton therapy (MRPT) is expected to improve its
current performance. The combination of magnetic fields with clinical proton beam lines …

Purpose To use EGSnrc Monte Carlo simulations for magnetic field dosimetry to determine
optimal measurement orientations, calculate beam quality conversion factors for 32 …

Purpose There have been several studies investigating dose deposition effects within
radiation detectors in the presence of a magnetic field. However, to date there has only been …

To further validate the Monte Carlo dose‐calculation method [Med. Phys. 25, 867–878
(1998)] developed at the Memorial Sloan‐Kettering Cancer Center, we have performed …

A commercially available open MRI unit is under routine use for radiation therapy simulation.
The effects of a gradient distortion correction (GDC) program used to post process the …

In the framework of the development of the integration of a MRI-scanner with a linear
accelerator, the influence of a lateral, magnetic field on the dose distribution has to be …

A Fano cavity test was performed for four general-purpose Monte Carlo codes, EGSnrc,
PENELOPE, MCNP6 and Geant4 to evaluate the accuracy of their electron transport …

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

Purpose: A protocol for reference dosimetry for the MR‐linac is under development. The 1.5
T magnetic field changes the mean path length of electrons in an air‐filled ionization …