Artistic view of the national infrastructure "ICONE" and the environment designed by Léon Delay (leon.delay.pro@gmail.com)

    ICONE

    ICONE (Installation COmpacte de NEutrons), Explore matter to develop Research and Innovation of tomorrow. Icone is a french project for a compact neutron source in Saclay, France.

    ICONE – Source Neutronique Française

    A french infrastructure dedicated to fundamental research and industry

    For several years, the community of neutron experts has been streadily shrinking, even as needs increase. Once very active in France, they are now turning their attention abroad, to other continents. The stop of nuclear reactors and the development of new technologies for neutron scattering place France at disadvantage in this field on a global scale. Icone project began with this issue. The objective is to provide around 10 instruments to researchers, with a quick and easy access. Moreover, Icone aims to be collaborative and wishes to provide two instruments designed exclusively for private companies. Then, they could benefit from the assistance of an expert technician. This collaborative space must respect rules and ensure confidentiality. Private results and data won't be accessible.

    Scientific Innovation

    Team's expertise in state of the art measuring instruments.

    Industry Support

    Work with private company to develop collaboration between researchers and industry representatives.

    Global Impact

    An infrastructure project which place France among the leaders of neutron scattering.

    Discover the key steps of ICON

    From the preliminary design stage to full operational capacity, follow the progress of the ICONE project.

    2024

    Preliminary draft

    📝 Preliminary studies and initial design of the neutron source.

    Validated
    2026

    Construction

    Work has begun on the Saclay site. Geotechnic studies have started, marking an important milestone in the realization of our project

    In progress
    2032

    High-Flux Neutrons

    ⚡ First operational phase with high-flux neutron production.

    Phase 1
    > 2036

    High-Resolution Neutrons

    🔬 Achieving full capacity with unrivalled resolution for cutting-edge research.

    Phase 2

    Actuality of ICONE project

    Stay up to date with the latest developments and important announcements regarding ICONE.

    Campus de Saclay - ICONE
    October 2025 Site

    ICONE will be in Saclay

    The CEA and the CNRS have officially chosen Saclay as the site for the future compact neutron source.

    Read more
    Équipe scientifique - ICONE
    November 2025 Management

    Thomas Vassiliadès joins the project as PMO

    A new recruit has joined the management team to lead this ambitious project.

    Read more
    Documents APD - ICONE
    January 2026 Data

    Presentation of Detailed Preliminary Design

    The Detailed Preliminary Design (APD) documents are now available for consultation.

    Read more

    The neutron: a unique probe for exploring matter

    The unique properties of neutrons make them an excellent non-destructive tool for probing matter. What sets neutrons apart from other methods is their strong interaction with light elements. For example, they make it much easier to detect hydrogen leaks inside metal containers.

    Penetration

    Significant penetration power, enabling analyses in volume and under in situ and operando conditions.

    Light elements

    Sensitivity to light elements, allowing the highlighting of hydrogen sites.

    Isotopic contrast

    An isotopic contrast that makes it possible to distinguish between hydrogen and deuterium with precision.

    Wavelengths

    Wavelengths comparable to atomic distances, revealing atomic structures.

    Adapted energies

    Energies suited to the internal excitations and dynamics of matter.

    Spin 1/2

    A spin of 1/2 that makes it possible to reveal magnetic structures at the atomic scale.

    ICONE, an HiCANS project (High Compact Neutron Sources) in France.

    After the nuclear reactors of the 50s-60s and spallation sources of the 80s-90s, a new generation of sources is appearing: the HiCANS.

    ICONE (Installation COmpacte de NEutrons), which is part of it, is a national facility open to users needing to conduct neutron scaterring experiments.

    The project is being jointly developed by the CEA and the CNRS.

    Logos CEA CNRS

    20 laboratories involved with ICONE

    Carte ICONE

    Booklets

    Find out a bit more about ICONE with the help of our documentation.

    Icone Overview

    A brief description of ICONE

    Download

    APD Icone

    APD ICONE

    Download

    Poster

    Poster ICONE

    Download