Measurement of neutron yield by 70 MeV proton beam on a thick Beryllium target, M. Osipenko, INFN, Italy − In the framework of research on IVth generation reactors and high intensity neutron sources a low-power prototype neutron amplifier was recently proposed by INFN. It is based on a low-energy, high current proton cyclotron, whose beam, impinging on a thick Beryllium converter, produces a fast neutron spectrum. The world database on the neutron yield from thick Beryllium target in the 70 MeV proton energy domain is rather scarce. The new measurement was performed at LNS, covering wide angular range from 0 to 150 degrees and almost complete neutron energy interval. In this talk the preliminary data are discussed together with the proposed ADS facility.