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Neutron diffraction bulk texture measurement using compact neutron source

小型中性子源による中性子回折バルク集合組織測定

徐 平光  ; 角田 龍之介*; 高村 正人*; 大竹 淑恵*; 鈴木 裕士 

Xu, P. G.; Kakuta, Ryunosuke*; Takamura, Masato*; Otake, Yoshie*; Suzuki, Hiroshi

Neutron diffraction is a powerful probe to acquire the bulk averaged information for better bridging the microscopic crystal lattice with the macroscopic properties, in contrast with the X-ray and electron diffractions which are capable for investigating the surface/very limited local regions of polycrystalline materials. In Japan, the RIKEN compact accelerator-driven neutron source facility (RANS) has been developing to improve the instrumental accessibility of neutron diffraction experimental studies, which were mostly carried out on large-scale neutron source facilities. Here, our latest technical progress in RANS neutron diffraction bulk texture measurement will be reported. The comparable study between RANS and another large-scale neutron diffraction facility suggests that the high stereographic resolution realized through the proper fine division of neutron detector panel is valuable to improve the precision and reliability of texture measurement, together with the careful scattering intensity correction of neutron patterns.

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