|
内容記述 |
The IFMIF/EVEDA Project (International Fusion Materials Irradiation Facility / Engineering Design and Engineering Validation Activities) is conducted under the Broader Approach agreement between EURATOM and Japan. Its primary goal is to deliver a comprehensive and fully integrated engineering design of the IFMIF facility, along with all data necessary for decisions on construction, operation, maintenance, as well as decommissioning, and it served as a basis for the IFMIF/DONES (Demo Oriented NEutron Source) Project. Among the original activities of IFMIF/EVEDA, the engineering validation of the IFMIF accelerator concept—conducted through the Linear IFMIF Prototype Accelerator (LIPAc)—remains the only activity still ongoing.Developed as a 1:1-scale prototype up to the first cryomodule, LIPAc aims to demonstrate the feasibility of an accelerator-based deuterium-lithium neutron source capable of delivering high-intensity neutron fluxes with an energy spectrum optimized for testing materials intended for future fusion reactors. Achieving this objective requires the IFMIF accelerator to meet unprecedented performance, verified through the design, manufacturing, installation, commissioning, and testing of key components such as the injector, first cryomodule, High Energy Beam Transport line, and High-Power Beam Dump.Following major achievements in 2019 and 2024, the LIPAc project has entered its fourth commissioning phase, focusing on validating the accelerator in its final configuration. The cryomodule assembly, currently in an advanced stage, will enable testing at the nominal energy of 9 MeV. Meanwhile, operational feedback allows to develop and manufacturing improved subsystems, such as the injector, RF power supplies, and Machine Protection Systems that will be tested in a later stage.This paper addresses the milestones reached so far and the future LIPAc developments, including commissioning phases planned for 2026 and beyond, aimed at supporting the next-generation fusion neutron sources, particularly (A-FNS) Advanced Fusion Neutrons Source in Japan and IFMIF/DONES whose construction phase has started in Granada, Spain. |
