Dose integration and dose rate characteristics of a NiPAM polymer gel MRI dosimeter system

Research output: Contribution to journalArticle


The normoxic polymer gel dosimeter based on N-isopropyl acrylamide (NiPAM) is a promising full 3D-dosimeter with high spatial resolution and near tissue equivalency. NiPAM gel samples were irradiated to different doses using a linear accelerator. The absorbed dose was evaluated using MRI and statistical significance of the analysed data was calculated. The analysis was carried out using an in-house developed software. It was found that the gel dosimeter responded linearly to the absorbed dose. The gel exhibited a dose rate dependence, as well as a dependence on the sequential beam irradiation scheme. A higher dose rate, as well as a higher dose per sequential beam, resulted in a lower dose response.


External organisations
  • University of Gothenburg
  • Sahlgrenska University Hospital
  • Skåne University Hospital
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Radiology, Nuclear Medicine and Medical Imaging
Original languageEnglish
Article number012063
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2017 Jun 5
Publication categoryResearch