Stability of PVA Fricke gel as a radiochromic indicator for blood irradiation

Edalatkhah, Elham; Sedighi, Mahsa; Taherparvar, Payvand

doi:10.22034/rpe.2023.413414.1157

Document Type : Research Article

Authors

¹ Radiation Applications Research School‎, ‎Nuclear Science and Technology Research Institute‎, ‎14155-1339‎, ‎Tehran‎, ‎Iran

² Physics Department, Faculty of Science, University of Guilan‎, Rasht, ‎Iran

https://doi.org/10.22034/rpe.2023.413414.1157

Abstract

Gamma radiation indicators are appropriate tools for monitoring visually whether or not the irradiation process has been carried out properly. Among chemical radiation indicators available worldwide, a few are suitable for monitoring low dose ranges (especially for blood irradiation, below 50 Gy). Addressing this scope, PVA-Fricke gel was proposed in this work. Irradiation of the prepared PVA-Fricke gel samples was performed by Co-60 gamma cell unit up to a dose of 80 Gy. Color change of the samples was observed from orange to purple proportional to increasing absorbed dose. Prepared samples were divided into three groups, kept at different environmental conditions, to investigate stability of the gel against temperature and light. Results revealed that the irradiated samples kept at dark and refrigerator were stable for seven days. Optical absorbance measurement of the samples also estimated pre- and post-irradiation color stability. The gel can be easily used to identify processed and unprocessed products in blood irradiation. Although the gel is designed to be a qualitative indicator, it is also a good quantitative dosimeter for gamma rays.

Highlights

PVA-Fricke gel was proposed as a gamma radiation indicator for blood irradiators.
Color change of the samples was observed from orange to purple proportional to increasing absorbed dose.
Irradiated samples kept at dark and refrigerator were stable for seven days.
The proposed gel is also a good quantitative dosimeter for gamma rays.

Keywords

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Radiation Physics and Engineering

Stability of PVA Fricke gel as a radiochromic indicator for blood irradiation

References

References

Volume 5, Issue 1
January 2024
Pages 75-80

Stability of PVA Fricke gel as a radiochromic indicator for blood irradiation

References

References

Volume 5, Issue 1January 2024Pages 75-80

Volume 5, Issue 1
January 2024
Pages 75-80