Open AccessMR ‐safe personal radiation dosimeters
Author(s) -
Tchistiakova E.,
Kim A.,
Song W. Y.,
Pang G.
Publication year - 2017
Publication title -
journal of applied clinical medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.83
H-Index - 48
ISSN - 1526-9914
DOI - 10.1002/acm2.12115
Subject(s) - dosimeter , radiation , nuclear medicine , medical physics , radiochemistry , low dose radiation , dosimetry , medicine , physics , optics , chemistry , dose–response relationship
Magnetic resonance imaging ( MRI ) is being rapidly integrated for cancer treatments—such systems are referred to as MRI ‐guided radiation therapy ( MRI g RT ). As the magnet of an MRI scanner is always on, the presence of a strong static magnetic field from the MRI scanner during radiotherapy delivery presents new challenges. One of the challenges is that a personal radiation dosimeter used to estimate the radiation dose deposited in an individual wearing the device must be MR ‐safe. No such devices, however, are currently available. In this work we first modified an existing personal dosimeter (by removing a metal clip) to make it MR ‐safe and then investigated potential effects of magnetic field on dosimeter readings, i.e., optically stimulated luminescent dosimeter ( OSLD ) readings. We found that the effect of magnetic field on OSLD sensitivity was within radiation protection tolerance levels. OSLD personal dosimeters can be directly used in conjunction with MRI g RT radiation protection purposes.