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International Journal of Radiation Research، جلد ۱۵، شماره ۳، صفحات ۲۴۱-۲۴۹
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عنوان انگلیسی Dosimetric investigation of high dose rate Ir-192 source with Monte Carlo method
چکیده انگلیسی مقاله Background: This study aims to calculate the air-kerma strength (SK), the dose rate constant (∧) and the dose rate profiles of a Gammamed 12i Ir-192 source by using the Monte Carlo technique and to compare the dose rate values with those calculated by the Abacus HDR treatment planning system (TPS). Materials and Methods: Air-kerma strength (in units of U; 1 U= μGy m2 h-1) and the dose rate constant (∧) of a Gammamed 12i Ir-192 source were computed with the Monte Carlo-based code MCNP. For a single dwell position, profiles of dose rate per air kerma rate strength (in unit of U) along the x axis were obtained with MCNP and compared with data from the Abacus TPS at y=0, 1, and 2 cm. Results: The air-kerma strength and the dose rate constant of the source were calculated to 9.98×10-8 U and 1.106 cGy h-1 U-1, respectively. The maximum dose differences between MCNP and TPS along the x axis were found to be 1.3, 3.7 and 5.4% at distances more than 1 cm away from the source center for y= 0, 1 and 2 cm planes, respectively. Conclusion: The dose rate profiles calculated with MCNP and by the TPS show good agreement except for points located beyond the tip of the source.  
کلیدواژه‌های انگلیسی مقاله Monte Carlo, high dose rate brachytherapy, Ir-192.
نویسندگان مقاله h acun | h. acun
1harran university, faculty of medicine, department of biophysics, osmanbey campus, 63300 sanliurfa, turkey


a bozkurt | a. bozkurt
2akdeniz university, faculty of engineering, department of biomedical engineering, antalya, turkey


g kemikler | g. kemikler
3 istanbul university, institute of oncology, department of medical physics, 34390 capa, istanbul, turkey
نشانی اینترنتی http://ijrr.com/browse.php?a_code=A-10-1-672&slc_lang=en&sid=en
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Radiation Biology
نوع مقاله منتشر شده مرور و بررسی کلی
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