Cyclotron Section - Overview

Full text: The main efforts of our Section are focused on modernization and adaptation of the AIC-144 cyclotron for medical purposes. For this aim we must extract a proton beam with energy up to 60 MeV (intensity ∼ 10 nA), and an up to 30 MeV deuteron beam (intensity ∼ 25 μA). The revamped cyclotron will be mainly used for proton and neutron radiotherapy and for production of medical radioisotopes. Most important works, performed in 2001, are listed below: A. Acceleration and extraction of proton beams with energy of about 48 MeV; B. Experimental examination of the working parameters of the AIC-144 cyclotron and of its extraction system for protons with energy of 60 MeV and deuterons with energy of 30 MeV; C. Purchase, installation and testing of a modern power supply for the steering magnet (proton transport to the medical room for the purpose of the eye therapy); D. Modification of the cyclotron resonator by installing so-called ''perpendicular armatures'' to push up maximum working frequency needed for 60 MeV alpha particle and proton beams and for 30 MeV deuterons; E. Elaboration of a new project of the PIG ion source, using the beam phase selectors in the central area of cyclotron; F. Installation and testing of the H.V. deflector (ESD-1), collimator and multilamel measuring probe; G. Elaboration and testing two software control modules (CAMP and BORP) to be used by the instrument operator, using Visual C++ v. 6.0 and SQL (Structured Query Language). Theoretical and experimental efforts were carried out in close cooperation with Laboratory of Nuclear Problems (Joint Institute for Nuclear Research, Dubna). In particular, collaboration with the worldwide known group of dr S.B. Vorojtsov's (N.A. Morozov, E.V. Samsonov, I.N. Kian) is gratefully acknowledged. (author)