Impact of magnetic fields on dose measurement with small ion chambers illustrated in high-resolution response maps.

@article{Lehmann2019ImpactOM,
  title={Impact of magnetic fields on dose measurement with small ion chambers illustrated in high-resolution response maps.},
  author={Joerg Lehmann and Toby Beveridge and Chris Oliver and Tracy E. Bailey and Jessica E Lye and John G. Livingstone and Andrew W. Stevenson and Duncan J. Butler},
  journal={Medical physics},
  year={2019}
}
PURPOSE Dosimetry of ionizing radiation in the presence of strong magnetic fields is gaining increased relevance in light of advances for MRI-guided radiation therapy. While the impact of strong magnetic fields on the overall response of ionization chambers has been simulated and measured before, this work investigates the local impact of the magnetic field on dose response in an ion chamber. High-resolution 1D and 2D response maps have been created for two small clinical thimble ionization… CONTINUE READING
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