%0 Journal Article %T Caracteriza£¿£¿o dosim¨¦trica de feixes de f¨®tons com detector de diamante %A Sabino %A Talita %A Rodrigues %A Laura Natal %A Furnari %A Laura %A Watanabe %A ¨¦rika Yumi %A Menegussi %A Gisela %J Radiologia Brasileira %D 2012 %I Col¨¦gio Brasileiro de Radiologia %R 10.1590/S0100-39842012000100009 %X objective: the present study was aimed at characterizing a diamond detector and observing its behavior. materials and methods: the dosimetric characteristics of 6 mv photon beams were measured by utilizing an automatic ptw mp3 scanning system with a diamond detector, and compared with measurements performed with a ptw 31010 ion chamber. results: measurements of dose linearity, dose rate dependence and depth dose distribution as well as dose profiles demonstrated the dosimetric characteristics of the diamond detector. conclusion: some measurements with diamond detector and ion chamber were validated with results published in the literature, demonstrating a good behavior of the diamond detector as compared with the ionization chamber that is widely utilized for dosimetry in radiotherapy, indicating that the diamond detector is a good choice for small field dosimetry. %K diamond %K dosimetry %K radiotherapy. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-39842012000100009&lng=en&nrm=iso&tlng=en