CALCULATION OF THE COOLING SYSTEM FOR THE RFQ AND IH-DTL STRUCTURES FOR THE DARIA COMPACT NEUTRON SOURCE

Abstract

A linear accelerator for the compact neutron source dedicated to applied research and industrial (DARIA) [1] is under development at Kurchatov Complex of Theoretical and Experimental Physics, National Research Centre Kurchatov Institute. This accelerator consisting of RFQ and IH-DTL types of accelerating cavities should ensure the acceleration of a proton beam with a current up to 100 mA to an energy of 13 MeV. The operating accelerator is subjected to thermal loads, which can break its working regime due to the effect of thermal strains of its units on the working frequency. To ensure the stability of electrodynamical parameters of accelerating structures, a cooling system should be used to ensure the thermal stabilization of its design. The calculation of the system of cooling channels in elements of the design of cavities at the operation of the accelerator in the pulsed regime with a duty factor of 1–5%.