Accelerator conceptual design of the international fusion materials irradiation facility

The accelerator system of the International Fusion Materials Irradiation Fa cility (IFMIF) provides the 250-mA, 40-MeV continuous-wave deuteron beam at one of the two lithium target stations. II consists of two identical linea r accelerator modules, each of which independently delivers a 125-mA beam t o the common footprint of 20 cm x 5 cm at the target surface. The accelerat or module consists of an ion injector, a 175 MHz RFQ and eight DTL tanks, a nd rf power supply system. The requirements for the accelerator system and the design concept are described. The interface issues and operational cons iderations to attain the proposed availability are also discussed. (C) 1998 Published by Elsevier Science B.V. All rights reserved.