This paper describes the acceleration tests performed at the Catania LNS Laboratory on a 3 GHz linac module of the side coupled type, which boosts the proton energy of a beam extracted from a cyclotron from 62 to 72 MeV. The output proton energy was measured with two devices: a NaI(Tl) crystal and a bending magnet. The experimental spectra are in good agreement with the calculated ones. From their shape it is obtained that (18 ± 3.0)% of the transmitted protons fall in a ± 2 MeV interval centered around 72 MeV. This result is in good agreement with the 20% value derived from the simulation of the acceleration process. The measured energy of the accelerated protons was used to check that the shunt impedance of the structure is equal to the computed one within 3%. This was the first time that a 3 GHz structure has been used to accelerate protons and the result of the tests have demonstrated that a high frequency linac can be used as a cyclotron booster.
Acceleration tests of a 3 GHz proton linear accelerator (LIBO) for hadrontherapy / C. De Martinis, D.Giove, M. Mauri, U. Amaldi, P. Berra, K. Crandall, M. Weiss, R. Zennaro, E. Rosso, B. Szeless, M.Vretenar ,M.R. Masullo, V. Vaccaro, L.Calabretta, A. Rovelli. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 681(2012 Jul 01), pp. 10-15.
|Titolo:||Acceleration tests of a 3 GHz proton linear accelerator (LIBO) for hadrontherapy|
DE MARTINIS, CARLO (Primo)
|Parole Chiave:||linac ; cyclotron ; booster ; cyclinac ; protontherapy ; proton therapy|
|Settore Scientifico Disciplinare:||Settore FIS/01 - Fisica Sperimentale|
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
|Data di pubblicazione:||1-lug-2012|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.nima.2012.04.017|
|Appare nelle tipologie:||01 - Articolo su periodico|