Application of high field magnetic resonance microimaging in polymer gel dosimetry.

ABSTRACT:

Purpose

The purpose of this work was to examine the suitability of VIPAR^nd polymer gel-9.4 T magnetic resonance microimaging system for high spatial resolution dose distribution measurements.

Methods

The VIPAR^nd samples (3 cm in outside diameter and 12 cm in height) were exposed to ionizing radiation by using a linear accelerator (Varian TrueBeam, USA; 6 MV x-ray beam). In the calibration stage, nine gel dosimeter vials were irradiated in a water phantom homogenously to the doses from 1.5 to 30 Gy in order to obtain R2-dose relation. In the verification stage, two gel dosimeter vials were irradiated in the half beam penumbra area of 10 × 10 cm radiation field using the amount of monitor units appropriate to deliver 20 Gy at the field center. The gels we

SUBMITTER: Skorupa A 

PROVIDER: S-EPMC7496647 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature