V. Variale

TL;DR: A 3 GHz side-coupled linac (ACLIP) has been designed to accelerate the proton energy of a 30 MeV commercial cyclotron up to 240 MeV, needed for deep protontherapy as mentioned in this paper.

Abstract: ACLIP is a 3 GHz proton SCL linac designed as a booster for a 30 MeV commercial cyclotron. The final energy is 62 MeV well suitable for the therapy of ocular tumors or for further acceleration (up to 230 MeV) by a second linac in order to treat deep-seated tumours. The possibility of using magnetrons as the source of RF power, to reduce the overall cost of the machine, is one the more relevant features of this project and this investigation is carried out within the frame of a collaboration with e2v (Chelmsford, UK). ACLIP is formed by 5 modules coupled together. The first one (able to accelerate proton from 30 to 35 MeV) has been machined, completely brazed and in December 2008 full power RF tests were performed. In this paper we will review the main features of the linac and discuss the results of the RF measurements carried out on this prototype.

TL;DR: In this paper, the authors proposed a tuning of the cavities of an accelerating structure to correct the deviation of each frequency mode from its nominal value by resorting to a perturbative technique applied to a circuit model representing this kind of structures.

TL;DR: ACLIP as discussed by the authors is a 3 GHz proton SCL linac designed as a booster for a 30 MeV commercial cyclotron and has been machined and completely brazed.