Comparative study of the proton beam effects between the conventional and circular gate MOSFETs. - Cirne, Karin Huscher; Lima, J A de; Seixas Jr, L E; Silveira, M A G; Barbosa, M D L; Tabacniks, Manfredo Harri; Added, Nemitala; Medina, Nilberto Heder; Gimenez, S P; Melo, W (International Conference on Ion Beam Analysis, 2011)