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Design of a slab phantom for breast dosimetry applications

1 Department of Radiology, Faculty of Para- Medicine, Hormozgan University of Medical Sciences, Bandare-Abbas, Iran
2 Department of Radiation and Oncology, Shahid Fayazbakhsh Hospital, Tehran, Iran
3 Department of Medical Physics, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran

Correspondence Address:
Soheila Refahi,
Department of Medical Physics, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil
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Source of Support: None, Conflict of Interest: None

Background: Design of phantoms for use in radiotherapy should consider the complex geometry of breast tissue and inhomogeneity. The aim of this study is design of a slab phantom for breast dosimetry applications. Materials and Methods: In this study, an anatomical slab phantom was designed with cork lung inhomogeneity and plexi colored heart part, also describes the different size of breast and chest wall phantom that have been designed and constructed for dosimetry. Three size different phantoms have been manufactured that installed in one trunk, as "small," "medium," and "large," two breast size fixed and one size was movable on a chest wall phantom. Two different dosimeters selected to dosimetry in this phantom, film was chosen for this dosimetry since it provides good spatial resolution and suitable for two-dimensional dosimetry also measure dose distribution used a point dosimetry with thermoluminescent dosimeter (TLD). Results: The results were shown near date due to either software or phantom calculation. Conclusion: Application include assessment dose in the junction region between the tangential fields and the supraclavicular fossa field, as well as assess dose in inhomogeneities, the phantom were formed from a variety of tissue substitute materials.

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