A small-dimensional accelerators for proton therapy

A brief survey of available projects and developings of a small-dimensional accelerators for proton therapy is given. The expediency and perspectivity of subsequent decrease of its dimensions and weight are marked. Three variants of the miniaccelerators for proton therapy with maximum sizes about 1m and weight about 1t are proposed and considered. The results of the calculations and estimations of the basic parameters of such accelerators are presented. In the third variant of the miniaccelerator the possibilities of purely induction method of the acceleration of the protons are considered. The principal feasibility of the miniaccelerators and possibility of their application for rotary-convergent irradiation of the tumours by proton beams by means of transfer of the miniaccelerator around immovably lying patient with optimum choice of the energy and intensity of the proton beam for each direction of the irradiation are shown