Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

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. 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
    3 Tunisian 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

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