M. tefnik *), P. Bm, M. Honusek, K. Katovsk, M. Majerle, J. Novk, and E. imekov AER Working Group F Spent Fuel Transmutation and INPRO IAEA Collaborative Project SYNERGIES *) Department of Nuclear Reactions NPI ASCR, pri, e, Czech Republic Department of Nuclear Reactors FNSPE CTU, V Holeovikch 2, Prague 8, Czech Republic Goals of experiments Motivation Experimental equipment D 2 O-target station Activation method Measurement of p-D 2 O neutron spectrum Specification of experiments, set-up, results MCNPX calculations Conclusion 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method2 Neutron spectrum determination of p-D 2 O generator Specification of neutron field characteristic in low energy range MCNPX model of heavy water target for direct neutron beam 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method3 IFMIF-like neutron spectrum simulation utilizing the NPI Cyclotron U-120M and NG-2 generator Application of simulated IFMIF neutron field for testing Eurofer Need for knowledge of neutron spectrum in whole energy range including the low energy part 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method4 International Fusion Material Irradiation Facility Accelerator driven neutron source Source reaction: d(40 MeV) + Li Spectrum mean energy of 14 MeV Testing of materials for fusion reactors Deuteron beam Neutron beam Liquid Li Chamber with samples 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method5 Source of white neutron spectrum Mean energy of 14 MeV, spectrum extending to 33 MeV In negative ion mode of acceleration 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method6 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method7 Measurement of low-energy part of spectra (E n < 4 MeV) Two irradiation position Field deformed by samples and devices 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method8 Proton (36 MeV) beam current of 8.4 A 7 types of activation materials (Mn, Y, Mo, In, Lu, Cd and Au) From thermal to fast region Nuclear -spectrometry technique 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method9 21 activation reactions observed Spectrum unfolded by modified SAND-II code EAF-2007 library, MCNPX input spectrum 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method10 Parallel proton beam (E p = 36 MeV) D 2 O layer, Si and PE plate Nuclear data library: LA-150h, ENDF/B-VII Input spectrum for SAND-II code 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method11 Dosimetry foil activation method used for IFMIF-like neutron spectrum determination. Spectral flux for energies less than 4 MeV relatively well known now. 27 January 2016 The Neutron Spectrum Determination of p-D2O Generator by the Dosimetry-Foil Method12