Progresses in the development of an anthropomorphic and anthropometric eye phantom for dosimetrical TLD ends

This work addresses the progress in the preparation of a pair of phantom of anthropomorphic and anthropometric eye of radiological equivalence that will help futures studies in radiodosimetry, applied to radiology and radiotherapy, mainly in treatment techniques in head's area and neck, in which the eyes are more susceptible to irradiation. The eye phantom that was projected represents one of an adolescent between 14 and 16 years. The phantom is constituted of equivalent tissues (TE) and can simulate the components of the human eye in the exposition to the radiation. Through the accomplishment of an radiodiagnostic image for computer tomography with axial section, in which the phantom of eye's object was setting up in another phantom, an anthropomorphic and anthropometric head and neck phantom developed in the research group NRI, it was verified the equivalence of the tissues, comparative to an axial section of a computer tomography of a real eyes. The improvement resumes in the production of the equivalent tissue, due to dehydration factors in function of the time that committed the equivalence anthropometric and anthropomorphic of the same. The present work approaches these improvements as well as the way of positioning of a group of dosimetrics type TLD's, in the vitreous, for dosimetry ends. (author)