Nuclear data measurements using the ANNRI in J-PARC/MLF

ANNRIを用いた核データ測定の現状

木村 敦   

Kimura, Atsushi

Accurate neutron capture cross section data for minor actinides and long-lived fission products are required to estimate the production and transmutation rates for developing innovative nuclear systems. However, accurate measurements of these cross sections are very difficult due to high radioactivity of these samples. To satisfy the requirement, Accurate Neutron-Nucleus Reaction measurement Instrument (ANNRI) has been developed in MLF of J-PARC. A series of neutron capture cross-section measurements have been started with the ANNRI. Currently, analyses of Cm, Cm and Np have been finished, and analyses of Am, I, Pd, Tc and Zr are in progress. These results will make significant contributions in the field of developing innovative nuclear systems. Furthermore, using strong pulsed neutrons, the ANNRI has been used not only for nuclear data but also nuclear astrophysics and microanalysis.