• A. Parravicini, S. Alpegiani, G. Balbinot, G. Bazzano, D. Bianculli, J. Bosser, E. Bressi, G. Burato, G. Butella, M. Caldara, E. Chiesa, L. Falbo, A. Ferrari, F. Generani, F. Gerardi, L. Lanzavecchia, R. Monferrato, V. Mutti, M. Nodari, M. Pezzetta, A. Portalupi, C. Priano, M. Pullia, S. Rossi, M. Scotti, M. Spairani, E. Vacchieri, S. Vitulli
  CNAO, Milano
• A. Reiter, B. Schlitt
  GSI, Darmstadt
• C. Biscari, C. Sanelli
  INFN/LNF, Frascati
• C. Roncolato
  INFN/LNL, Legnaro
• L. Celona, G. Ciavola, S. Gammino, F. Maimone
  INFN/LNS, Catania
• L. Frosini, G. Venchi
  University of Pavia, Pavia
• M. Ferrarini
  Politecnico di Milano, Milano

The Centro Nazionale di Adroterapia Oncologica (CNAO) is the Italian centre for deep hadrontherapy, namely an innovative type of radiotherapy using hadrons. The wide range of beam parameters (i.e., energy and intensity) at patient level together with the advantages of hadron-therapy with respect to traditional radio-therapy nourishes the hopes for more effective patient recovery. After the LEBT and the RFQ commissioning, the IH commissioning is now in progress. First patients are expected to be treated in 2010. The present paper summarizes and evaluates the Low Energy Beam Transfer (LEBT) line commissioning, which has been carried out between July 2008 and January 2009.