Combining Monte Carlo simulations and dosimetry measurements for process control in the Tunisian Cobalt-60 irradiator after three half lives of the source

doi:10.1007/s41365-017-0289-5

Nuclear Science and Techniques ›› 2017, Vol. 28 ›› Issue (9): 133 doi: 10.1007/s41365-017-0289-5

• NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH • Previous Articles Next Articles

Combining Monte Carlo simulations and dosimetry measurements for process control in the Tunisian Cobalt-60 irradiator after three half lives of the source

Leila Ounalli ^1,2 Maroua Bhar ³ Arbi Mejri ¹ Kais Manai ^4,5 Ammar Bouabidi ^1,4 Shayma Mohamed Abdallah ⁴ Nafaa Reguigui ¹

¹ Tunisian Center for Nuclear Sciences and Technology, Technopark Sidi Thabet, 2020 Ariana, Tunisia
² Laboratory on Energy and Matter for Nuclear Sciences Development, Technopark Sidi Thabet, 2020 Ariana, Tunisia
³Tunisian Higher Institute of Medical Technologies, 9 Rue Zouhair Essafi 1006 TUNIS, 1006 Tunis, Tunisia
⁴ Faculty of Sciences of Tunis, Technopark Sidi Thabet, 2020 Ariana, Tunisia
⁵ College of Science and Arts, University of Bisha, Bisha, Kingdom of Saudi Arabia

Contact: Leila Ounalli E-mail:leila.ounalli@cnstn.rnrt.tn; leila.ounalli@gmail.com

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Leila Ounalli, Maroua Bhar, Arbi Mejri, Kais Manai, Ammar Bouabidi, Shayma Mohamed Abdallah, Nafaa Reguigui. Combining Monte Carlo simulations and dosimetry measurements for process control in the Tunisian Cobalt-60 irradiator after three half lives of the source.Nuclear Science and Techniques, 2017, 28(9): 133 doi: 10.1007/s41365-017-0289-5

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Abstract

Abstract:

To check the dose uniformity and to determine the efficiency of medical devices sterilization by gamma irradiation after three half lives of the source, calculations of the absorbed dose were carried out. Monte Carlo simulations and dosimetry measurements, were established to study the radiation processing quality control. An isodose chart was created by GEANT4 Monte Carlo code to evaluate the absorbed dose rate uniformity inside the irradiation room from the year of the installation until the year of the source reload. The dose uniformity ratio (DUR) is deduced from maximum and minimum experimental doses in medical devices after three half lives of the source.

Key words: Cobalt-60, Monte Carlo calculation, Sterilization, Medical devices, Dose rate, Uniformity, PMMA dosimeter, Dose mapping

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Nuclear Science and Techniques

Combining Monte Carlo simulations and dosimetry measurements for process control in the Tunisian Cobalt-60 irradiator after three half lives of the source

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