RF system design for the TOP-IMPLART accelerator

V. Surrenti, G. Bazzano, P. Nenzi, L. Picardi, C. Ronsivalle, F. Ambrosini

Research output: Contribution to conferencePaper

1 Citation (Scopus)


In the ENEA-Frascati research center a linear accelerator for proton therapy is under development in the framework of TOP-IMPLART Project carried out by ENEA in collaboration with ISS and IRE-IFO. The machine is based on a 7 MeV injector operating at a frequency of 425 MHz followed by a sequence of 2997.92 MHz accelerating modules. Five 10 MW klystrons will be used to power all high frequency structures up to a beam energy of 150 MeV. The maximum repetition frequency is 100 Hz and the pulse duration is 4 μs. The RF amplitude and phase stability requirements of the accelerating field are within ±2% and ±2 degrees respectively. For therapeutic use the beam energy will be varied between 85 and 150 MeV by switching off the last modules and varying the electric field amplitude in the last module switched on. Fast control of the RF power supplied to the individual structures allows an energy variation on a pulse by pulse basis; furthermore the system must be able to control the RF phase between accelerating structures. This work describes the RF power distribution scheme and the RF phase and amplitude monitoring system implemented into an embedded control system.
Original languageEnglish
Publication statusPublished - 2015
Externally publishedYes
Event6th International Particle Accelerator Conference, IPAC 2015 - Richmond, United States
Duration: 1 Jan 2015 → …


Conference6th International Particle Accelerator Conference, IPAC 2015
CountryUnited States
Period1/1/15 → …


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics

Cite this

Surrenti, V., Bazzano, G., Nenzi, P., Picardi, L., Ronsivalle, C., & Ambrosini, F. (2015). RF system design for the TOP-IMPLART accelerator. Paper presented at 6th International Particle Accelerator Conference, IPAC 2015, Richmond, United States.