Gel dosimetry: An overview of dosimetry systems and read out methods

Y De Deene, A Jirasek - Radiation Measurements, 2024 - Elsevier
Gel dosimetry has emerged over the past three decades in response to a growing need in
high-precision radiotherapy to assess, in three dimensions, the absorbed radiation dose, as …

An x-ray CT polymer gel dosimetry prototype: II. Gel characterization and clinical application

H Johnston, M Hilts, J Carrick… - Physics in Medicine & …, 2012 - iopscience.iop.org
This article reports on the dosimetric properties of a new N-isopropylacrylamide, high% T,
polymer gel formulation (19.5% T, 23% C), optimized for x-ray computed tomography (CT) …

Evaluation of accuracy and precision in polymer gel dosimetry

E Maynard, M Hilts, E Heath, A Jirasek - Medical physics, 2017 - Wiley Online Library
Purpose To assess the overall reproducibility and accuracy of an X‐ray computed
tomography (CT) polymer gel dosimetry (PGD) system and investigate what effects the use …

Modification of wood cell wall with water-soluble vinyl monomer to improve dimensional stability and its mechanism

Y Huang, G Li, F Chu - Wood Science and Technology, 2019 - Springer
In this work, a new simple and environmentally friendly wood modification method was used
to improve the dimensional stability of fast-growing wood. The wood samples were …

An x-ray CT polymer gel dosimetry prototype: I. Remnant artefact removal

A Jirasek, J Carrick, M Hilts - Physics in Medicine & Biology, 2012 - iopscience.iop.org
In this study a new x-ray CT polymer gel dosimetry (PGD) filtering technique is presented for
the removal of (i) remnant ring and streak artefacts, and (ii)'structured'noise in the form of …

Polymer gel dosimeters for pretreatment radiotherapy verification using the three-dimensional gamma evaluation and pass rate maps

LL Hsieh, JI Shieh, LJ Wei, YC Wang, KY Cheng… - Physica Medica, 2017 - Elsevier
Polymer gel dosimeters (PGDs) have been widely studied for use in the pretreatment
verification of clinical radiation therapy. However, the readability of PGDs in three …

Monte Carlo modeling of a conventional X-ray computed tomography scanner for gel dosimetry purposes

H Hayati, A Mesbahi, M Nazarpoor - Radiological physics and technology, 2016 - Springer
Our purpose in the current study was to model an X-ray CT scanner with the Monte Carlo
(MC) method for gel dosimetry. In this study, a conventional CT scanner with one array …

[HTML][HTML] Improvement of sensitivity of X-ray CT reading method for polymer gel in radiation therapy

N Javaheri, M Yarahmadi, A Refaei… - Reports of Practical …, 2020 - Elsevier
Background Three dimensional (3D) dosimetry methods are useful for advanced
radiotherapy techniques such as stereotactic radiosurgery (SRS) and high dose rate (HDR) …

Optical and NMR dose response of N-isopropylacrylamide normoxic polymer gel for radiation therapy dosimetry

A Mesbahi, V Jafarzadeh… - Reports of Practical …, 2012 - journals.viamedica.pl
Background Application of less toxic normoxic polymer gel of N-isopropyl acrylamide
(NIPAM) for radiation therapy has been studied in recent years. Aim In the current study the …

Study of the formulation optimization and reusability of a MAGAT gel dosimeter

TD Resende, JC Lizar, FM Dos Santos, LF Borges… - Physica Medica, 2019 - Elsevier
Purpose This study aims to optimize the formulation of a methacrylic acid gelatine and
tetrakis (hydroxymethyl) phosphonium chloride (MAGAT) gel dosimeter to achieve …