Dosimetric characteristic of a new 125I brachytherapy source
| Autor: | Mahdi Sadeghi, Zahra Khanmohammadi |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
medicine.medical_treatment
Monte Carlo method Brachytherapy Brachytherapy source Iodine Radioisotopes medicine Dosimetry Humans Radiology Nuclear Medicine and imaging Anisotropy Radiometry Physics Radioisotopes Radiation Radiological and Ultrasound Technology Public Health Environmental and Occupational Health Industrial research Water Radiotherapy Dosage General Medicine Function (mathematics) Equipment Design Computational physics Computer-Aided Design Constant (mathematics) Monte Carlo Method |
| Zdroj: | Radiation protection dosimetry. 147(3) |
| ISSN: | 1742-3406 |
| Popis: | A new brachytherapy (125)I source has been investigated at Iranian Agricultural, Medical and Industrial Research School. Dosimetric characteristics [dose-rate constant Λ, radial dose function g(l)(r) and anisotropy function F(r,)] of IRA-(125)I were theoretically determined in terms of the updated AAPM task group 43 (TG-43U1) recommendations. Versions 5 and 4C of the Monte Carlo radiation transport code were used to calculate the dosimetry parameters around the source. The Monte Carlo calculated dose-rate constant of the (125)I source in water was found to be 92×10(-4) Gy h(-1) U(-1) with an approximate uncertainty of ±3 %. Brachytherapy seed model, 6711-(125)I, carrying (125)I radionuclides, was modelled and benchmarked against previously published values. Finally, the calculated results were compared with the published results of those of other source manufacturers. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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