External PIGE-PIXE measurements at the São Paulo 8UD tandem accelerator - Rizzutto, Márcia de Almeida; Tabacniks, Manfredo Harri; Added, Nemitala; Liguori Neto, Raphael; Acquadro Quacchia, Juan Carlos; Vilela, M. M.; Oliveira, T. R. C. F.; Markarian, R. A.; Mori, Matsuyoshi (Nuclear Instruments and Methods in Physics Research B, 2002)