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Updated: Aug 14, 2026

Dosimetry for Cell Irradiation using Orthovoltage (40-300 kV) X-Ray Facilities
Published on: February 20, 2021
Dosimetry study of an accidental overexposure to 192Ir gamma rays
J L Lefaix1, F Daburon, G Fayart
1Commissariat a l'Energie Atomique Laboratoire de Radiobiologie Appliquée, C.E.N. Saclay, Gif sur Yvette, France.
Abstract:
Localized irradiation of the skin and subcutaneous tissues with large single doses of gamma rays can induce delayed effects characterized by fibrosis that invades the irradiated tissues. The skin surface dose and the depth of penetration of 192Ir gamma rays, measured in phantoms and in frozen thighs of sacrificed pigs after acute single doses of irradiation and different skin-to-source distances, are reported in this note. Correlations between the dosimetry and the evolution of the lesions are considered.
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