Do saccharide doped PAGAT dosimeters increase accuracy?
- Author
- B Berndt, PS Skyt, L Holloway, R Hill, A Sankar and Yves De Deene (UGent)
- Organization
- Abstract
- To improve the dosimetric accuracy of normoxic polyacrylamide gelatin (PAGAT) gel dosimeters, the addition of saccharides (glucose and sucrose) has been suggested. An increase in R-2-response sensitivity upon irradiation will result in smaller uncertainties in the derived dose if all other uncertainties are conserved. However, temperature variations during the magnetic resonance scanning of polymer gels result in one of the highest contributions to dosimetric uncertainties. The purpose of this project was to study the dose sensitivity against the temperature sensitivity. The overall dose uncertainty of PAGAT gel dosimeters with different concentrations of saccharides (0, 10 and 20%) was investigated. For high concentrations of glucose or sucrose, a clear improvement of the dose sensitivity was observed. For doses up to 6 Gy, the overall dose uncertainty was reduced up to 0.3 Gy for all saccharide loaded gels compared to PAGAT gel. Higher concentrations of glucose and sucrose deteriorate the accuracy of PAGAT dosimeters for doses above 9 Gy.
- Keywords
- POLYMER GEL DOSIMETERS
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8038354
- MLA
- Berndt, B., et al. “Do Saccharide Doped PAGAT Dosimeters Increase Accuracy?” Journal of Physics Conference Series, vol. 573, IOP, 2015, doi:10.1088/1742-6596/573/1/012029.
- APA
- Berndt, B., Skyt, P., Holloway, L., Hill, R., Sankar, A., & De Deene, Y. (2015). Do saccharide doped PAGAT dosimeters increase accuracy? Journal of Physics Conference Series, 573. https://doi.org/10.1088/1742-6596/573/1/012029
- Chicago author-date
- Berndt, B, PS Skyt, L Holloway, R Hill, A Sankar, and Yves De Deene. 2015. “Do Saccharide Doped PAGAT Dosimeters Increase Accuracy?” In Journal of Physics Conference Series. Vol. 573. Bristol, UK: IOP. https://doi.org/10.1088/1742-6596/573/1/012029.
- Chicago author-date (all authors)
- Berndt, B, PS Skyt, L Holloway, R Hill, A Sankar, and Yves De Deene. 2015. “Do Saccharide Doped PAGAT Dosimeters Increase Accuracy?” In Journal of Physics Conference Series. Vol. 573. Bristol, UK: IOP. doi:10.1088/1742-6596/573/1/012029.
- Vancouver
- 1.Berndt B, Skyt P, Holloway L, Hill R, Sankar A, De Deene Y. Do saccharide doped PAGAT dosimeters increase accuracy? In: Journal of Physics Conference Series. Bristol, UK: IOP; 2015.
- IEEE
- [1]B. Berndt, P. Skyt, L. Holloway, R. Hill, A. Sankar, and Y. De Deene, “Do saccharide doped PAGAT dosimeters increase accuracy?,” in Journal of Physics Conference Series, Ystad, Sweden, 2015, vol. 573.
@inproceedings{8038354, abstract = {{To improve the dosimetric accuracy of normoxic polyacrylamide gelatin (PAGAT) gel dosimeters, the addition of saccharides (glucose and sucrose) has been suggested. An increase in R-2-response sensitivity upon irradiation will result in smaller uncertainties in the derived dose if all other uncertainties are conserved. However, temperature variations during the magnetic resonance scanning of polymer gels result in one of the highest contributions to dosimetric uncertainties. The purpose of this project was to study the dose sensitivity against the temperature sensitivity. The overall dose uncertainty of PAGAT gel dosimeters with different concentrations of saccharides (0, 10 and 20%) was investigated. For high concentrations of glucose or sucrose, a clear improvement of the dose sensitivity was observed. For doses up to 6 Gy, the overall dose uncertainty was reduced up to 0.3 Gy for all saccharide loaded gels compared to PAGAT gel. Higher concentrations of glucose and sucrose deteriorate the accuracy of PAGAT dosimeters for doses above 9 Gy.}}, articleno = {{012029}}, author = {{Berndt, B and Skyt, PS and Holloway, L and Hill, R and Sankar, A and De Deene, Yves}}, booktitle = {{Journal of Physics Conference Series}}, issn = {{1742-6588}}, keywords = {{POLYMER GEL DOSIMETERS}}, language = {{eng}}, location = {{Ystad, Sweden}}, pages = {{4}}, publisher = {{IOP}}, title = {{Do saccharide doped PAGAT dosimeters increase accuracy?}}, url = {{http://doi.org/10.1088/1742-6596/573/1/012029}}, volume = {{573}}, year = {{2015}}, }
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