The fabrication of the magnet core of the MSC-230 medical superconducting
cyclotron developed by NIIEFA JSC (an enterprise of Rosatom State Corporation)
for the Joint Institute for Nuclear Research (JINR, Dubna) has been completed
and factory tests have been successfully carried out.
The electromagnet with the diameter of 3.86 meters (pole diameter - 2.4 meters), height, excluding supports 1.9 meters and weight of 127 tons is one of the key units of the MSC-230 cyclotron. During its design and fabrication, it was necessary to ensure the clearance accuracy at the level of 0.05 mm and parallelism at the level of 0.02 mm.
"Tests on geometric accuracy and operation of the upper yoke lifting system confirmed the most important parameters of the magnetic conductor - obtaining the required gap between the magnetic conductor sectors and their parallelism with the necessary tolerances," said Kirill Smirnov, Deputy Director General for Accelerator Technologies - Director of the Scientific and Technical Center "Linear Accelerators and Cyclotrons" of NIIEFA JSC.
The project to build the first Russian cyclotron complex based on a
superconducting isochronous proton cyclotron at 230 MeV for radiation therapy
and biomedical research has been implemented jointly by JINR and JSC NIIEFA
since 2022. In addition to traditional methods of irradiation, the MSC-230
cyclotron provides beam modes for proton flash therapy (a method of radiation
therapy, the peculiarity of which is fast and accurate delivery of ultra-high
dose of radiation directly to the tumor). The customer and ideologist of the
project is JINR, the Institute's area of responsibility includes a unique
superconducting winding with a cryostat based on the technology applied at the
NICA complex. NIIEFA JSC is responsible for the development and fabrication of
the magnetic core, accelerating system, ion source locking and alignment
system, attachments and a number of supporting systems. The equipment isbeing manufactured at the site of NPO GKMP LLC (Bryansk); in summer 2026,
the magnetic conductor is planned to be delivered to JINR for installation,
assembly with the cryostat, and further testing.
Joint Stock Company D.V. Efremov NIIEFA (NIIEFA JSC) is an enterprise of
Rosatom State Corporation, a leading scientific, design, engineering and
production and bench center of the Russian Federation. Efremov NIIEFA JSC
(NIIEFA JSC) is an enterprise of Rosatom State Corporation, a leading scientific,
design and production and bench center of the Russian Federation for the
development of electrophysical installations and complexes to solve scientific
and applied problems in the field of plasma physics, atomic and nuclear
physics, elementary particle physics, health care, radiation and energy
technologies, introscopy. The facilities created at the Institute are
successfully operated in many organizations and enterprises in Russia, the CIS
countries, Bulgaria, Hungary, Germany, Egypt, India and other countries.
The government and specialized agencies are working on the planned upgrade of domestic healthcare capacities, ensuring full sovereignty of our country in this field. As a partner of the state in increasing the life expectancy and improving the quality of life of the country's population, Rosatom is increasing the production of a wide range of medical equipment and radiopharmaceuticals, creating a fully import-independent system of medical assistance to Russian citizens in the diagnosis and treatment of socially significant diseases.
