Monte Carlo simulations of the new small-angle neutron scattering instrument SANS-1 at the Heinz Maier-Leibnitz Forschungsneutronenquelle
نویسندگان
چکیده
A new small-angle scattering instrument SANS-1 will be installed on beamline NL 4a at the Heinz Maier-Leibnitz Forschungsneutronenquelle (FRM II). It is a joint venture between the Technische Universität München and the Geesthacht Neutron Facility (GENF). SANS-1 has been optimized to be one of the most intense and versatile small-angle scattering instruments within the boundaries of available space and interaction with neighbouring instruments. Using the program McStas, the dimensions and the features of the different optical components were investigated and compared for the final selection. A vertical Sshaped neutron guide, a tower with two possible selectors, one for medium resolution at high intensity and one for high resolution, and two optimized transmission polarizers are the main advantages of SANS-1 compared with traditional instruments at other facilities.
منابع مشابه
Tuning the instrument resolution using chopper and time of flight at the small-angle neutron scattering diffractometer KWS-2
Following demand from the user community regarding the possibility of improving the experimental resolution, the dedicated high-intensity/extended Q-range SANS diffractometer KWS-2 of the Jülich Centre for Neutron Science at the Heinz Maier-Leibnitz Center in Garching was equipped with a double-disc chopper with a variable opening slit window and time-of-flight (TOF) data acquisition option. Th...
متن کاملComission on Powder Diffraction International Union of Crystallography
SPODI, the Structure POwder DIffractometer, will be installed on beamline SR 8 at the FRM II in Garching. The instrument has been designed to achieve an ideal compromise of good-resolution up to very high 2θ (by using a monochromator take-off angle of 155°) and highflux with special emphasis on ‘good’ profile shapes and low background. To optimise the parameters of the optical components like c...
متن کاملNature of the Bonding in Metal-Silane σ-Complexes
Department of Chemistry, UniVersity of New Brunswick, P.O. Box 4400, Fredericton, N.B. E3B 5A3, Canada, Department of Health and Human Sciences, London Metropolitan UniVersity, 166-220 Holloway Road, London N7 8D8, U.K., Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM-II), Technische UniVersität München, D-85747 Garching, Germany, CNR-ISTM, Istituto di Scienze e Tecnologie Molecolari, Via C...
متن کاملA next generation measurement of the electric dipole moment of the neutron at the FRM II
I. Altarev(), S. Chesnevskaya(), W. Feldmeier(), P. Fierlinger(), A. Frei(), E. Gutsmiedl(), F. Kuchler(), P. Link(), T. Lins(), M. Marino(), S. Paul(), G. Petzoldt(), A. Pichlmaier(), R. Stoepler(), S. Stuiber(), B. Taubenheim() () Physikdepartment Technische Universität München and Excellence-Cluster ’Universe’ () Technische Universität München, Forschungsneutronenquelle Heinz Maier-Leibnitz ...
متن کاملScattering Functions of Semidilute Solutions of Polymers in a Good Solvent
Expressions for analyzing small-angle scattering data from semidilute solutions of polymers in a good solvent over a broad range of scattering vectors are examined. Three different scattering function expressions are derived from Monte Carlo simulations. The expressions are similar to those of polymer reference interaction site models, with a scattering-vector-dependent direct correlation funct...
متن کامل