BIG SCIENCE – MAIN PROJECTS
CNAO (National Center for Oncological Hadrontherapy) is the first hospital in Italy specifically dedicated to cancer treatment through hadrontherapy. CNAO uses a synchrotron to accelerate protons and carbon ions .
Protons and ions are produced in two sources, pre-accelerated by a linear accelerator, followed by an injection line for the transfer of particles in the synchrotron, where the particles beam will be further accelerated and extracted at energies up to 250 MeV for protons and 400 MeV/u carbon ions.
EEI designed and manufactured 7 power supplies for quadrupole and sextupole magnets of the synchrotron accelerator of the CNAO.
The control loop, working at 40 kHz, is managed by a National Instruments PXI chassis with a 3 M-gate FPGA and four DSP.
In 2017 EEI has also provided:
Med Austron in Wiener Neustadt is one of the major Center for Ion Beam Therapy and Research in Europe. The Center, done in cooperation with CERN, is in operation since 2016 and involve 1.400 patients every year.
The non-clinical research focuses on medical radiation physics, radiation biology and experimental physics. Synchrotron is able to accelerate particles to the planned extraction energy, ranging from 60 MeV to 250 MeV for protons and 120 MeV/u to 400 MeV/u for carbon ions, suitable for the medical application.
For non-clinical research only, a proton energy extended up to 800 MeV is also possible.
For Med Austron EEI supplied 90% of all converters in the facility, output current from 50A to 3300A.
SCANNING MAGNET POWER SUPPLIES:
A set of free-standing, 4-quadrant, 600 A, 600 V switched-mode power supplies was delivered in 2015. The power supplies feed the scanning magnets. Both voxel and painting mode are supported, with adjustable current slope. The power converter features a voltage rise/fall time as low as 30 μs (from zero to the nominal voltage) and a current settling time less than 200 μs.
In the three-year period 2019-2021 EEI is working on the supply of almost all the power supplies for the magnets of the accelerator used for the adrotherapy treatment of a new clinical installation in the Middle East.
Compared to the supply of the previous project in Wiener Neustadt, EEI will add two 2500 A / 1500 V power supplies to feed the main dipole and 90 degrees dipole.
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