A new neutron facility at SPIRAL-2

Orateur : Xavier LEDOUX (CEA-GANIL, Bld Henri Becquerel, 14000 CAEN)

The “Neutrons For Science” (NFS) facility is a component of SPIRAL-2, the new facility built at GANIL in Caen (France). NFS is composed of a pulsed neutron beam for time-of-flight measurements and irradiation stations for cross-section measurements. Neutrons will be produced by the interaction of deuteron and proton beams, delivered by the SPIRAL-2 linear accelerator, with thick or thin converters made of beryllium or lithium. Continuous and quasi-mono-energetic spectra will be available at NFS up to 40 MeV. In this fast energy region, the neutron flux is expected to be up to 2 orders of magnitude higher than the one of the others existing time-of-flight facilities. In addition, irradiation stations for neutron-, proton- and deuteron-induced reactions will allow performing cross-section measurements by the activation technique. After a description of the facility and of its characteristics, the experiments to be performed in the short and medium term will be presented.

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