Characterization of 27 mev proton beam generated by top-implart linear accelerator

C. De Angelis, A. Ampollini, E. Basile, E. Cisbani, S. Della Monaca, F. Ghio, R. M. Montereali, L. Picardi, M. Piccinini, C. Placido, C. Ronsivalle, A. Soriani, L. Strigari, E. Trinca, M. Vadrucci

Research output: Contribution to journalArticlepeer-review


The first proton linear accelerator for tumor therapy based on an actively scanned beam up to the energy of 150 MeV, is under development and construction by ENEA-Frascati, ISS and IFO, under the Italian TOP-IMPLART project. Protons up to the energy of 7 MeV are generated by a customized commercial injector operating at 425 MHz; currently three accelerating modules allow proton delivery with energy up to 27 MeV. Beam homogeneity and reproducibility were studied using a 2D ionizing chamber, EBT3 films, a silicon diode, MOSFETs, LiF crystals and alanine dosimetry systems. Measurements were taken in air with the detectors at ~1 m from the beam line exit window. The maximum energy impinging on the detectors surface was 24.1 MeV, an energy suitable for radiobiological studies. Results showed beam reproducibility within 5% and homogeneity within 4%, on a circular surface of 16mm in diameter.

Original languageEnglish
Pages (from-to)329-333
Number of pages5
JournalRadiation Protection Dosimetry
Issue number1-4
Publication statusPublished - Jan 1 2018

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiation
  • Radiology Nuclear Medicine and imaging
  • Public Health, Environmental and Occupational Health


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