IFMIF-DONES España

Explore Spain’s IFMIF-DONES delivery consortium, accelerator–lithium materials irradiation, construction and operating responsibilities, and international governance.

Official company website ↗Read the Japanese original

CURRENT STATUS

Facility construction and technology procurement

Information checked: 2026-10-30

COUNTRY: Spain
TECHNOLOGY: Accelerator-driven neutron irradiation of fusion materials
FOUNDED: Not verified
FUNDING: Not verified

DEVELOPMENT ROADMAP

CONCEPTConcept

DESIGNDesign

CONSTRUCTIONConstruction

FIRST PLASMAFirst plasma

NET ENERGYEnergy gain

PILOT PLANTDemonstration plant

COMMERCIALCommercial operation

This is a general development-stage reference. This company's or project's precise stage is unconfirmed, so no position is assigned. Development pathways vary by technology and business.

Distinguish the Spanish entity from the international programme

IFMIF-DONES España is a public consortium constituted through a 9 June 2021 agreement between Spain’s national administration and Andalusia. The international DONES Programme, Spain’s delivery organization and the accelerator facility are distinct. The Spanish entity has responsibilities for the facility, national contributions and eventual operation and maintenance.

The facility is being built at Escúzar near Granada. Its purpose is neutron testing of materials for future fusion reactors, not generating fusion electricity. An organizational directory should therefore identify a research-infrastructure delivery body, while a project directory describes the irradiation facility.

Producing neutrons with an accelerator and lithium

The concept accelerates deuterons in a linear accelerator and directs them onto a liquid-lithium target. It is not a tokamak containing a burning plasma. It is intended to provide a fusion-relevant neutron environment for examining materials under high accumulated exposure.

Neutrons affect structural materials as well as components directly facing plasma. A material that tolerates temperature and mechanical loads before irradiation may not retain identical properties afterward. Selection therefore needs evidence from relevant exposure, not just an as-manufactured specification.

What material testing does—and does not—establish

Testing, validation and qualification require more than irradiating a specimen. Exposure must be characterized, changes measured and results connected to properties needed in design. Reproducibility and traceability matter because the findings inform safety and replacement decisions.

Specimen results alone do not guarantee whole-plant lifetime or availability. Component geometry, joints, stress and cooling must also be considered. Complementing ITER and DEMO means filling an important evidence gap, not resolving every plasma, fuel and power-system problem in a single facility.

Responsibilities of the Spanish consortium

The consortium describes Spanish construction contributions including buildings, plant systems and controls, alongside licensing responsibilities, hosting the international team and future operation and maintenance. It is therefore more than a funding-distribution body: it has responsibilities for making internationally supplied systems function as one facility.

Completing an accelerator, lithium system, irradiation area and utilities independently is insufficient. Interfaces, protection, inspection and replacement procedures must also work together. Industrial relevance extends from precision equipment to civil works, instrumentation, remote operations and quality assurance, while individual contracts require specific evidence.

International framework and current stage

F4E’s announcement of 21 November 2025 reports the Multilateral International DONES Agreement involving Spain, Japan, Croatia, Italy and the European side. It establishes arrangements for governance, financial and in-kind contributions, management and intellectual property. F4E manages the European contribution; it is not the Spanish consortium.

F4E’s current overview describes civil works and technology procurement underway. Early wording on the consortium page about construction starting after confirmation should not override this newer stage description. Agreement, construction, installation, commissioning and the start of material experiments remain different milestones.

Sources

Sources reviewed：2026-10-30

Companies DATA

Country: Spain
Region: Europe
Company category: Public research-infrastructure delivery consortium
Approach / reactor type: Accelerator-driven neutron irradiation of fusion materials
Development stage: Facility construction and technology procurement

Check the official information

Sources and primary documents

Checked：2026-10-30