Implementation of a high dose routine dosimetry in a self-shielded irradiator

Implementation of a high dose routine dosimetry in a self-shielded irradiator

Authors

DOI:

https://doi.org/10.22458/urj.v16i1.5229

Keywords:

Red Perspex, calibration curve, PMMA dosimeters, high dose dosimetry, self-shielded irradiator, dose uncertainty

Abstract

Introduction: Ionizing radiation is applied in various fields, and dosimetric control guarantees the quality and safety of products during the irradiation process. There is a need for dosimetric calibration procedures in industrial irradiation plants, specifically for self-shielded irradiation systems. Objective: To implement high dose dosimetry in the routine control of irradiated materials within a self-shielded irradiator. Methods: We worked with 32 dosimeters; we divided the dose range used into 8 points and used four RED Perspex dosimeters per point. We measured the specific absorbance for each dosimeter; plotted these values against dose and produced a third-degree polynomial fit as a calibration curve. Results: We obtained the calibration curve with an r2 of 0,9997. The uncertainties due to the dispersion of the dosimeters and the calibration curve were 1,39% and 0,22%, respectively, for a total uncertainty of 4,80%. This uncertainty includes dose determination with a factor coverage (k) equal to 2 for a 95% confidence interval. Conclusion: Perspex RED dosimeters can be used for routine control of irradiated products in a self-shielded irradiator system.

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Published

2024-07-01

How to Cite

Vargas-Segura, W., & Rojas-Rojas, L. (2024). Implementation of a high dose routine dosimetry in a self-shielded irradiator. UNED Research Journal, 16(1), e5229. https://doi.org/10.22458/urj.v16i1.5229

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Section

Short Communication
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