Monte Carlo and experimental relative dose determination for an Iridium-192 source in water phantom
نویسندگان
چکیده
Theoretical and experimental studies have been applied for dosimetric parameters determination of the brachytherapy sources (1-3). Usually, Monte Carlo method has been used to define such quantities as the anisotropy dose function, the radial dose function, and the dose calculation close to the source in brachytherapy (4-6). Ir source is used widely in brachytherapy to treat localized tumors near body site. Daskalov et al. (7) have done dosimetric modeling of the microselectron HDR Ir source by the multigroup discrete ordinates method. Recently, Sureka et al. calculated the relative dose distribution and effective transmission around a shielded vaginal cylinder with HDR Ir source using MCNP4B (8). In the present study, MCNP4C (9) code was used to calculate relative dose and anisotropy dose function and radial dose function TG-43 dosimetry parameters of microselectron HDR Ir in a water phantom and compared with the measured dose by Gafchromic Rtqa film.
منابع مشابه
Monte Carlo and experimental relative dose determination for an Iridium-192 source in water phantom
Background: Monte Carlo and experimental relative dose determination in a water phantom, due to a high dose rate (HDR) 192Ir source is presented for real energy spectrum and monochromatic at 356 keV. Materials and Methods: The dose distribution has been calculated around the 192Ir located in the center of 30 cm ×30 cm ×30 cm water phantom using MCNP4C code by Monte Carlo method. Relati...
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