Abstract
The new small angle scattering instrument SANS-1, jointly operated by the Technische Universität München and GEMS, Helmholtz-Zentrum Geesthacht, has completed commissioning and is in regular user service (Gilles et al., 2006). SANS-1 is located at the end of neutron guide NL4a in the Neutron Guide Hall West.
Highlights
SANS-1 is a standard pinhole SANS instrument with both 20 m collimation distance and 20 m sample detector distance, respectively
SANS-1 has been optimised by Monte-Carlo simulations to t the restrictions in both available space and optimal usage of the provided neutron beam (Gilles et al, 2007)
A vertical S-shaped neutron guide with extreme suppression of fast background neutrons is optimised for complementary wavelength packages, followed by the selector tower with two selectors for high and low resolution, respectively
Summary
SANS-1 is a standard pinhole SANS instrument with both 20 m collimation distance and 20 m sample detector distance, respectively. SANS-1 has been optimised by Monte-Carlo simulations to t the restrictions in both available space and optimal usage of the provided neutron beam (Gilles et al, 2007). A vertical S-shaped neutron guide with extreme suppression of fast background neutrons is optimised for complementary wavelength packages, followed by the selector tower with two selectors for high and low resolution, respectively. A second high resolution (3 mm) detector, installed downstream of the primary detector is foreseen for 2016. A TISANE chopper disk set-up will be available in 2015 which allows to perform kinetic neutron scattering experiments in the μs regime and simultaneously sets the stage for a later upgrade to a complete time-of- ight option for SANS-1
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