ISOCHRONOUS CYCLOTRON C250 FOR PROTON THERAPY APPLICATION

Yu.G. Alenitskyª, S.B. Vorozhtsov, A.S. Vorozhtsov, A.A. Glazov, N.L. Zaplatin, S.A. Kostromin, G.A. Karamisheva, L.M. Onischenko

Joint Institute for Nuclear Research, Dubna, Russia

Abstract

Dubna scientific medicine center is under development since 1967 on the base of the proton beam of LNP JINR Phazotron. Proton beam with energy Е_р~170 MeV and intensity I~0.1 μA is used for patients irradiation. Proposal of the cyclotron with the same beam characteristics was reported earlier at the RUPAC04 [1], ICAA05 [2], RUPAC06 [3] and printed in magazine [4].

New project of C250 – cyclotron for proton therapy is considered in this paper. Energy of the extracted beam increased according to last medical requirements up to 250 MeV. 4-fold and compact types of magnet yoke were studied by 3D computer magnetic field calculations. The ability of optimal combination of the magnet yoke, HF and extraction systems of the cyclotron taking into account the dynamics of the proton beam in calculated magnetic and accelerating field is under discussion.

ª – corresponding author

Paper 

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