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Wide-$$q$$ observation from 10$$^{-4}$$ to 2.0$AA $^{-1}$$ using a focusing and polarized neutron small-angle scattering spectrometer, SANS-J-II

Iwase, Hiroki; Koizumi, Satoshi; Suzuki, Junichi; Oku, Takayuki   ; Sasao, Hajime*; Tanaka, Hirokazu*; Shimizu, Hirohiko*; Hashimoto, Takeji

In order to extend an upper q-limit larger, high-angle He sub-detectors were installed on focusing and polarized neutron small-angle scattering spectrometer (SANS-J-II) at JRR-3, Tokai. Consequently, its upper q-limit was improved from 0.2$AA $^{-1}$$ to 2$AA $^{-1}$$. To quantitatively discriminate spin incoherent scattering from hydrogen or to perform nuclear spin polarization contrast variation, a remanent supermirror analyser is also available on the high-angle sub detector. By combining a focusing ultra-small angle scattering, realized by compound and/or magnetic lens and high resolution area detector, SANS-J-II is able to cover from 3$$times$$10$$^{-3}$$ $AA $^{-1}$$ to 2$AA $^{-1}$$ (four order of magnitude of q), which profits to investigate hierarchically ordered system, found widely in hard, soft and bio-materials.

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Category:Chemistry, Multidisciplinary

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