|Support type:||Scholarships in Brazil - Master|
|Effective date (Start):||March 01, 2011|
|Effective date (End):||September 30, 2012|
|Field of knowledge:||Physical Sciences and Mathematics - Physics|
|Principal Investigator:||Thomaz Ghilardi Netto|
|Grantee:||Fernanda Ferretti de Oliveira|
|Home Institution:||Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil|
Radiotherapy is often used in cancer treatment, either as a single modality or in combination with other modalities such as surgery and chemotherapy. It uses ionizing radiation and is based on the destruction of tumor cells by absorbing the energy of the incident radiation. The main problem with radiotherapy is that tumor cells are not treated separately. It means that the radiation damage is not restricted only to tumor cells but also affects normal cells. It is therefore essential that the dose of radiation released in the normal tissue be as low as possible to minimize the risk of side effects of radiotherapy. The problem of ensuring that the doses are being distributed properly is the object of study of in vivo dosimetry.The objective of this proposal is the characterization of semiconductor dosimeters and their application in specialized radiotherapy techniques. The characterization will allow the implementation of semiconductor devices as a system of in vivo dosimetry in external beam radiation therapy with photon beam. The in vivo dosimetry as part of a program of quality assurance in a Radiation Therapy Service, ensures the consistency of the release of the daily dose to the patient during treatment, and improves the quality of treatments.