2012 年 33 巻 5 号 p. 258-263
Introduction to material evaluation/structure analyses by quantum beam “neutron” is given on the occasion of the commencement of public access to J-PARC/MLF (Japan Proton Accelerator Research Complex/Materials and Life Science Laboratory), Tokai, Japan. Japan now has two major neutron beam sources in Tokai, i. e., J-PARC/MLF and the Japan Research Reactor 3 (JRR-3), at Japan Atomic Energy Agency (JAEA) and one in Kumatori, Osaka, Kyoto University Reactor (KUR). Starting with an introduction of the suchness of “neutron”, unique properties of neutron beam and its application to material evaluation and structure analyses are described together with various types of neutron instruments at these facilities.