Development of nanostructure analysis method using data to wide range of q for HI-SANS at J-PARC

Takata, Shinichi  ; Shinohara, Takenao   ; Suzuki, Junichi; Oku, Takayuki   ; Suzuya, Kentaro; Aizawa, Kazuya  ; Otomo, Toshiya*; Sugiyama, Masaaki*; Arai, Masatoshi

The high-intensity smaller-angle neutron scattering instrument (HI-SANS) is designed for efficient measurements in wide-q range including higher q range of 110 to 50 []. By obtaining structural information from such wide-q range, the instrument is expected to contribute significantly to clarify hierarchical structures such as protein, polymer, and metal nanoparticles. Heretofore, the analysis method used in conventional SANS instruments was enough to treat the data measured in the q range limited below about 0.2 []. However, for the HI-SANS, it is important to develop a new analysis method, which is taken into account the information of the material structure in atomic scale to micrometer scale. We will present the development of such wide-q analysis method along with the contrast variation analysis of proteins in hydrated water and the reverse Monte Carlo analysis.