Davies 2013.pdf (540.95 kB)
Verification of a non-diffusing gel dosimeter
conference contribution
posted on 2023-05-23, 11:57 authored by Davies, JB, Bosi, SG, Baldock, CAn evaluation of the diffusion coefficient of a genipin-gelatin gel dosimeter was carried out by fitting an inverse square root function to image profile data. A comparison was made with a Fricke-gelatin-xylenol orange (FGX) gel dosimeter, in which the ions are known to diffuse. The diffusion coefficient for this FGX gel, consisting of 0.5 mM ferrous ammonium sulphate, 50 mM sulphuric acid, 0.15 mM xylenol orange and 3 % by weight gelatin was 0.70 ± 0.05 mm2 h−1 at 5 Gy. The genipin-gelatin gel consisted of 50 μM genipin, 4 % by weight gelatin and 100 mM sulphuric acid. The fitted parameter that is proportional to the diffusion coefficient did not significantly change over time, demonstrating that this genipin-gelatin gel is a non-diffusing dosimeter.
History
Publication title
Proceedings of the 7th International Conference on 3D Radiation Dosimetry (IC3DDose)Pagination
1-4ISSN
1742-6588Department/School
Research ServicesPublisher
IOP Publishing LtdPlace of publication
Bristol, UKEvent title
7th International Conference on 3D Radiation Dosimetry (IC3DDose)Event Venue
Journal of Physics: Conference Series, 444Date of Event (Start Date)
2012-11-04Date of Event (End Date)
2012-11-08Rights statement
Creative Commons Attribution 3.0 licenceRepository Status
- Open