A reduction of diffusion in PVA Fricke hydrogels
Smith, Shaun, Masters, Kye-Simeon, Hosokawa, Kazuyuki, Blinco, James P., Crowe, Scott, Kairn, Tanya, & Trapp, Jamie (2015) A reduction of diffusion in PVA Fricke hydrogels. Journal of Physics: Conference Series, 573(1), 012046.
A modification to the PVA-FX hydrogel whereby the chelating agent, xylenol orange, was partially bonded to the gelling agent, poly-vinyl alcohol, resulted in an 8% reduction in the post irradiation Fe3+ diffusion, adding approximately 1 hour to the useful timespan between irradiation and readout. This xylenol orange functionalised poly-vinyl alcohol hydrogel had an OD dose sensitivity of 0.014 Gy−1 and a diffusion rate of 0.133 mm2 h−1. As this partial bond yields only incremental improvement, it is proposed that more efficient methods of bonding xylenol orange to poly-vinyl alcohol be investigated to further reduce the diffusion in Fricke gels.
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|Item Type:||Journal Article|
|Keywords:||Gel dosimetry, Fricke, radiotherapy|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Statement:||Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.|
|Deposited On:||14 Jan 2015 22:35|
|Last Modified:||06 Sep 2016 03:16|
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