Author/Authors :
Civinini، نويسنده , , C. and Bruzzi، نويسنده , , M. and Bucciolini، نويسنده , , M. and Carpinelli، نويسنده , , M. and Cirrone، نويسنده , , G.A.P. and Cuttone، نويسنده , , G. and Lo Presti، نويسنده , , D. and Pallotta، نويسنده , , S. and Pugliatti، نويسنده , , C. and Randazzo، نويسنده , , Dimitris N. and Romano، نويسنده , , F. and Scaringella، نويسنده , , M. and Sipala، نويسنده , , V. and Stancampiano، نويسنده , , C. and Talamonti، نويسنده , , C. and Vanzi، نويسنده , , E. and Zani، نويسنده , , M.، نويسنده ,
Abstract :
Proton Computed Tomography (pCT) is a medical imaging technique based on the use of proton beams with energies above 200 MeV to directly measure stopping power distributions inside the tissue volume. Prima (PRoton IMAging) is an Italian collaboration working on the development of a pCT scanner based on a tracker and a calorimeter to measure single protons trajectory and residual energy. The tracker is composed of four planes of silicon microstrip detectors to measure proton entry and exit positions and angles. Residual energy is measured by a calorimeter composed of YAG:Ce scintillating crystals. A first prototype of pCT scanner, with an active area of about 5×5 cm2, has been constructed and characterized with 60 MeV protons at the INFN Laboratori Nazionali del Sud, Catania (Italy) and with 180 MeV protons at Svedberg Laboratory, Uppsala (Sweden). A new pre-clinical prototype with an extended active area up to 20×5 cm2, real time data acquisition and a data rate up to 1 MHz is under development. A description of the two prototypes will be presented together with first results concerning tomographic image reconstruction.
