Status of the Engineering Design of the IFMIF-DONES High Energy Beam Transport Line and Beam Dump System

IFMIF-DONES plant (In­ter­na­tional Fu­sion Ma­te­ri­als Ir­ra­di­a­tion Fa­cil­ity ’ DEMO Ori­ented Neu­tron Source) will be an in­stal­la­tion lo­cated in the south of Spain at Granada. Its ob­jec­tive is the fu­sion ma­te­r­ial test­ing by the gen­er­a­tion of a neu­tron flux with a broad en­ergy dis­tri­b­u­tion cov­er­ing the typ­i­cal neu­tron spec­trum of a (D-T) fu­sion re­ac­tor. This is achieved by the Li(d, xn) nu­clear re­ac­tions oc­cur­ring in a liq­uid lithium tar­get where a 40 MeV at 125 mA deuteron beam with a vari­able rec­tan­gu­lar beam foot­print be­tween 100mm x 50mm and 200mm x 50mm col­lides. The ac­cel­er­a­tor sys­tem is in charge of pro­vid­ing such high en­ergy deuterons in order to pro­duce the re­quired neu­tron flux. The High En­ergy Beam Trans­port line is the last sub­sys­tem of the IFMIF-DONES ac­cel­er­a­tor and its main func­tions are to guide the deuteron beam to­wards the liq­uid lithium tar­get and to shape it with the re­quired rec­tan­gu­lar ref­er­ence beam foot­print. The pre­sent work de­tails the sta­tus of the HEBT en­gi­neer­ing de­sign, in­clud­ing beam dy­nam­ics, vac­uum con­fig­u­ra­tion, ra­dio­pro­tec­tion, beam di­ag­nos­tics de­vices and re­mote han­dling analy­ses per­formed de­tail­ing the lay­out and in­te­gra­tion.