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Current status of the 40 m small‐angle neutron scattering instrument development at the HANARO research reactor
Author(s) -
Han YoungSoo,
Choi SungMin,
Kim TaeHwan,
Lee ChangHee,
Kim HarkRho
Publication year - 2007
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889806050217
Subject(s) - research reactor , neutron scattering , scattering , monte carlo method , neutron , small angle neutron scattering , small angle scattering , optics , physics , neutron flux , range (aeronautics) , nuclear engineering , nuclear physics , computational physics , materials science , engineering , mathematics , statistics , composite material
The cold neutron research facility project at the Korean HANARO research reactor was launched in 2003. A state‐of‐the‐art small‐angle neutron scattering instrument was selected as a top‐priority instrument. An analytical calculation was used to obtain the optimum instrument design and the appropriate range of scattering vectors of the instrument. Then, in order to optimize the instrument layout and to enhance the instrument's performance, a Monte Carlo simulation was performed. The Q range [where Q is the magnitude of the scattering vector given by (4π/λ)sin(θ/2), θ is the scattering angle and λ is the wavelength] of the instrument will extend from 0.0008 to 1.0 Å −1 . The instrument layout was optimized based on simulation results. The maximum flux at the sample position can reach about 5.5 × 10 7 n cm −2 s −1 .