Publication Date:
2008
Citation:
CERN PSB beam tests of CNAO synchrotron’s digital LLRF / M.E. Angoletta, A. Findlay, O. Bourrion, R. Foglio, D. Tourres, C. Vescovi, L. Falbo, S. Hunt, C. De Martinis - In: Proceedings of EPAC08[s.l] : null, 2008. - pp. 1431-1433 (( Intervento presentato al 11. convegno EPAC : European particle accelerator conference tenutosi a Genova, Italy nel 2008.
abstract:
The Italian National Centre for Oncological
hAdrontherapy (CNAO), in its final construction phase,
uses proton and carbon ion beams to treat patients
affected by solid tumours. At the heart of CNAO is a 78-
meter circumference synchrotron that accelerates particles
to up to 400 MeV/u. The synchrotron relies on a digital
LLRF system based upon Digital Signal Processors
(DSPs) and Field Programmable Gate Array (FPGA).
This system implements cavity servoing and beam control
capabilities, such as phase and radial loops. Beam tests of
the CNAO synchrotron LLRF system were carried out at
CERN’s Proton Synchrotron Booster (PSB) in autumn
2007, to verify the combined DSP/FPGA architecture and
the beam control capabilities. For this, a prototype version
of CNAO’s LLRF system was adapted to the PSB
requirements. This paper outlines the prototype system
layout and describes the tests carried out and their results.
In particular, system architecture and beam control
capabilities were successfully proven by comparison with
the PSB operational beam control system and with the
help of several existing beam diagnostic systems.
hAdrontherapy (CNAO), in its final construction phase,
uses proton and carbon ion beams to treat patients
affected by solid tumours. At the heart of CNAO is a 78-
meter circumference synchrotron that accelerates particles
to up to 400 MeV/u. The synchrotron relies on a digital
LLRF system based upon Digital Signal Processors
(DSPs) and Field Programmable Gate Array (FPGA).
This system implements cavity servoing and beam control
capabilities, such as phase and radial loops. Beam tests of
the CNAO synchrotron LLRF system were carried out at
CERN’s Proton Synchrotron Booster (PSB) in autumn
2007, to verify the combined DSP/FPGA architecture and
the beam control capabilities. For this, a prototype version
of CNAO’s LLRF system was adapted to the PSB
requirements. This paper outlines the prototype system
layout and describes the tests carried out and their results.
In particular, system architecture and beam control
capabilities were successfully proven by comparison with
the PSB operational beam control system and with the
help of several existing beam diagnostic systems.
IRIS type:
03 - Contributo in volume
Keywords:
low level RF ; hadrontherapy
List of contributors:
M.E. Angoletta, A. Findlay, O. Bourrion, R. Foglio, D. Tourres, C. Vescovi, L. Falbo, S. Hunt, C. De Martinis
Link to information sheet:
Book title:
Proceedings of EPAC08