Dose response of selected ion chambers in applied homogeneous transverse and longitudinal magnetic fields

Purpose: The magnetic fields of an integrated MR-Linac system will alter the paths of electrons that produce ions in the ionization chambers. The dose response of selected ion chambers is evaluated in the presence of varying transverse and longitudinal magnetic fields. The investigation is useful in...

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Veröffentlicht in:	Medical physics (Lancaster) 2013-04, Vol.40 (4), p.042102-n/a
Hauptverfasser:	Reynolds, M., Fallone, B. G., Rathee, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	60 APPLIED LIFE SCIENCES Applications biomedical MRI Calibrating of instruments or apparatus calibration Computer Simulation Computer-Aided Design DEPOSITS Dose-Response Relationship, Radiation DOSES DOSIMETRY Dosimetry/exposure assessment Field size Involving electronic [emr] or nuclear [nmr] magnetic resonance, e.g. magnetic resonance imaging ionisation chambers IONIZATION CHAMBERS IRRADIATION linac‐MR LINEAR ACCELERATORS longitudinal and transverse linac‐MR magnetic field Magnetic field measurements MAGNETIC FIELDS Magnetic resonance imaging Magnets Models, Theoretical Monte Carlo MONTE CARLO METHOD Monte Carlo methods Monte Carlo simulations NMR IMAGING PHOTON BEAMS Photons Radiation Dosage RADIOLOGY AND NUCLEAR MEDICINE Radiometry - instrumentation Reproducibility of Results Sensitivity and Specificity SIMULATION Standards and calibration Testing or calibrating of apparatus or arrangements provided for in groups G01D1/00 to G01D15/00 X RADIATION
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