“Chronograph. Time’s Witnesses: Sergey Borisovich Vorozhtsov”
Sergey Borisovich Vorozhtsov started his career at the Laboratory of Nuclear Problems in 1963 after graduating from the Moscow Engineering Physics Institute. The major directions of his activities are physics of charged-particle accelerators (mathematical simulation of magnetostatic fields and beam dynamics at accelerators with a spatial variation of the magnetic field) and particle physics (simulation of magnetic systems of experimental facilities).
In 1968―1985, he intensively contributed to the project on the DLNP synchrocyclotron reconstruction, and on its basis the development of a phasotron with a spatial variation of the magnetic field (physical variation of the magnet structure and numerical simulation of the charged-particle dynamics). He took an active part in the commissioning of the accelerator with a beam. He contributed a lot to preparing the phasotron for the operation.
Another part of scientific activities of Sergey Borisovich refers to calculations of extremely complicated spatial magnetic field distributions for magnetic systems of experimental facilities in particle physics. Noteworthy is his considerable contribution to numerical simulation of the field of the experimental complexes NA-4 (SPS, CERN), SDC (SSC, USA), ATLAS and CMS (LHC, CERN), MPD (NICA, JINR). The maps of fields were intended for analyzing data from these detectors.
Sergey Borisovich was actively involved in the development of new cyclotrons in the Czech Republic, Slovakia, Poland, Serbia, Japan, China, the USA, on Cuba. The following projects were successfully accomplished ― the AIC-144 cyclotron in Krakow (where the beam ejection efficiency was increased by several times), the RIKEN AVF cyclotron in Japan (where the twofold proton energy increase was achieved), a cyclotron in China, the injector for HIMM at IMP (the sixfold increase in carbon ion intensity was experimentally achieved), etc. The development and launch of the most compact superconducting cyclotron ION-12SC with a record high magnetic field to generate isotopes for medical applications, in cooperation with Ionetix Co (USA), stands out in this list. At present, cyclotrons are installed across the world in more than 10 scientific centres. The area of their application is expanding.
Today, Sergey Borisovich is an adviser to the launch of the superconducting cyclotron SC-240 for proton therapy (Hefei, China) and the cyclotron with a 30-MeV alpha-particle beam to generate At211 isotopes (Ionetix Co, USA) widely used for cancer treatment. Now, both facilities are under implementation (the experimentally generated magnetic field of the facilities completely meets the requirements).
Sergey Borisovich Vorozhtsov authored and co-authored above 280 papers. Several candidate dissertations were defended under his supervision. He was a member of the Special Council of the Laboratory of Particle Physics.
Many times, the JINR Prizes were awarded to Sergey Borisovich for outstanding achievements in science. He was granted the badge “Veteran of Nuclear Power Engineering and Industry”.
Video by Anastasia Malyshkina
