Academic Journal
RADIATION ISODOSE SURFACE DISTORTION AS A SOURCE OF DOSE OR EXPOSURE RATE MEASUREMENT UNCERTAINTY: EXAMPLE IN BRACHYTHERAPY SEEDS
| العنوان: | RADIATION ISODOSE SURFACE DISTORTION AS A SOURCE OF DOSE OR EXPOSURE RATE MEASUREMENT UNCERTAINTY: EXAMPLE IN BRACHYTHERAPY SEEDS |
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| المؤلفون: | José Eduardo Manzoli, Jorge Pirolla, Eduardo Santana De Moura, Carlos Alberto Zeituni, João Moura, Maria Elisa, Chuery Martins Rostelatto |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://www.imeko2009.it.pt/Papers/FP_69.pdf. |
| سنة النشر: | 2009 |
| المجموعة: | CiteSeerX |
| مصطلحات موضوعية: | radiation, sealed source, isodose |
| الوصف: | − Radiation sealed sources have an emission that could be studied by theirs isodose surfaces. The intersection of a plan with such a surfaces is described by the dose rate contour curves. It is very common to assume that these surfaces have rotational symmetry around the longitudinal axis, and so, the contour curves have mirror symmetries. Here it is shown, by a computational simulation, that if the radioactive material inside de sealed vessel is not homogeneous, the uncertainty in dose rate measurements could achieve high values. This uncertainty value is exemplified in a iodine-125 seed source used for brachytherapy purposes. dose measurement uncertainty if no quality control assure its uniformity. In this study it is shown some changes in dose rate contour curves due to non-uniform distribution of the radioactive material inside the sealed source, that we will call defect. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.415.8522; http://www.imeko2009.it.pt/Papers/FP_69.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.415.8522 http://www.imeko2009.it.pt/Papers/FP_69.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.C2F395B1 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |