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    Neutron Production (WP3)
    WP3 • NEUTRON SOURCE • BEAMS
    The main objective of WP3 “Neutron Production” is to provide two different neutron beam structures — High-Flux and High-Resolution — dedicated to the scientific instruments developed within WP2.
    The target–moderator assembly will enable the production, slowing down, and conditioning of neutrons in order to deliver beams adapted to the experimental needs of users.
    Main Requirements
    The performance requirements of the neutron source are defined to meet scientific needs requiring either high intensity or high experimental precision.
    Particles Production of neutron beams dedicated to scientific instruments.
    Wavelengths Covered range: 0.5–20 Å corresponding to 0.2–300 meV.
    Peak Brightness Approximately 1012 cm-2.s-1.Å-1.sr-1 at 2.5 Å.
    High-Flux Target 2 ms pulses at 20 Hz with an average power of 80 kW.
    High-Resolution Target 400 µs pulses at 50 Hz with an average power of 40 kW.
    Thermal Operation Production and moderation of thermal and cold neutrons.
    The Target–Moderator Assembly
    The neutron production chain relies on several successive steps that transform the proton beam into neutrons suitable for use by scientific instruments.
    Proton Beam The proton beam is provided by the linear accelerator developed within WP4.
    Neutron Target Nuclear reactions in the target produce fast neutrons.
    Thermal Moderator Fast neutrons are slowed down to obtain thermal neutrons.
    Cold Moderator Production of cold neutrons suitable for advanced experiments.
    Distribution to Instruments Neutrons are transported to the scientific instruments of WP2.
    Performance and Flexibility
    The two beam structures — High-Flux and High-Resolution — will make it possible to optimise experiments according to scientific requirements: maximum intensity for fast measurements, or high temporal and energy resolution for detailed studies of matter.
    This architecture will provide extensive experimental versatility for the study of materials, biological systems, condensed matter, and complex dynamic phenomena.