Author: Nenzi, P.
Paper Title Page
THPVA090 The TOP-IMPLART Linac: Machine Status and Experimental Activity 4669
 
  • C. Ronsivalle, A. Ampollini, G. Bazzano, P. Nenzi, L. Picardi, V. Surrenti, E. Trinca, M. Vadrucci
    ENEA C.R. Frascati, Frascati (Roma), Italy
 
  Funding: Regione Lazio in the framework of the TOP-IMPLART Project
The TOP-IMPLART (Intensity Modulated Proton Therapy Linear Accelerator for Radiotherapy) linac is a 150 MeV pulsed proton linear accelerator for protontherapy applications under realization, installation and progressive commissioning at ENEA. It is the first linac running with 3GHz SCDTL (Side Coupled DTL) accelerating modules. These constitute the first two sections of the whole linac up to 71 MeV proton energy, while the accelerating structure of the following part of the accelerator is under definition. Each SCDTL section is powered by a 10 MW peak power klystron. The first section, consisting of 4 modules (7 to 35 MeV) has been completed and it is operational at low repetition rate (25 Hz). The second section, consisting of other 4 modules (up to 71 MeV), is currently under executive design. The output beam at each stage of the progressive commissioning is fully characterized. The beam is routinely employed in radiobiology experiments and detector evaluation. The paper presents the actual status of the machine, installation, beam characterization and an overview of the experimental activity results.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA090  
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THPVA091 Diagnostics Methods for the Medium Energy Proton Beam Extracted by the TOP IMPLART Linear Accelerator 4673
 
  • M. Vadrucci, A. Ampollini, P. Nenzi, L. Picardi, C. Ronsivalle, E. Trinca
    ENEA C.R. Frascati, Frascati (Roma), Italy
  • E. Cisbani, F. Ghio
    ISS, Rome, Italy
  • M. Marinelli, G. Prestopino, G. Verona Rinati
    INFN - Roma Tor Vergata, Roma, Italy
  • C. Placido
    University of Rome La Sapienza, Rome, Italy
 
  Funding: This material is based upon work supported by the Regione Lazio/Italy
The Italian TOP IMPLART project aims to develop the first proton linear accelerator for cancer radiotherapy. A 150MeV proton LINAC is under construction at the ENEA Frascati research center: currently the machine is composed by a 7MeV injector operating at 425MHz and four 3GHz SCDTL modules producing a proton beam of 35MeV. Operational procedures for irradiation of samples need careful measurements of average beam current, transverse distribution and pulse charge by different monitor types placed along the beam line. The injected current in the high frequency segment of the accelerator is measured by a Fast Current Transformer (FCT) at the entrance of the SCDTL modules and the pulsed current of the accelerated beam is measured by a second FCT, placed in air, at the exit. The output proton beam shape and intensity are measured by an integral ionization chamber, a double (XY) multistrip ionization chamber, a synthetic single crystal diamond detector and a Faraday cup. In this work, the results of these multiple diagnostic tools applied to different operating conditions of the machine are presented.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA091  
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