Résumé : A feasibility study was undertaken for the measurement of the resonance at Er=545 keV in the N13(p,)14O reaction, using intense radioactive ion beams. The analog resonance at Er=512 keV in C12(p,)14N was chosen as a test case, leading to improved knowledge of the resonance parameters. Thin- and thick-target yields were obtained with C13 beams on an extended gas target and a polyethylene foil, respectively. In addition, thin and thick targets of enriched C13 were irradiated with proton beams. Normalization problems arising with mixed ion beams (13N/13C) are discussed. © 1991 The American Physical Society.