The IFMIF-DONES (International Fusion Materials Irradiation Facility-DEMO Oriented NEutron Source) facility will provide fusion like neutrons for the irradiation of representative samples of fusion materials. A linear accelerator will accelerate deuterons at high intensity to impinge in a liquid lithium curtain circulating in a loop, which will produce neutrons capable of obtaining the required damage conditions.

The course is a journey around why and how of the IFMIF-DONES project, in which main technologies and systems of this Big Science facility will be outlined. An in depth overview of the IFMIF-DONES fusion neutron source and the fusion materials qualification program will be issued.
The course will include a detailed description of the different systems of the accelerator, the lithium loop and the irradiation zone, including aspects of beam dynamics, diagnostics, radiofrequency systems, vacuum, control and synchronization, cryogenics, purification and cooling in liquid metals, remote handling and superconducting cavities. Highlights of this international project will also be discussed and lessons learned from the prototype IFMIF accelerator, so called LIPAc, will be presented.

More general and state-of-the-art aspects of the technologies involved in IFMIF-DONES, such as neutron sources or high intensity linear accelerators and other alternative applications of the neutron source, outside the fusion program, will be discussed.
Finally, the course will include a section dedicated to the industry collaborating with IFMIF-DONES, where some success stories and the road travelled will be presented.