%0 Journal Article
%A Radulescu, Aurel
%A Szekely, Noemi
%A Polachowski, Stephan
%A Leyendecker, Marko
%A Amann, Matthias
%A Buitenhuis, Johan
%A Drochner, M.
%A Engels, Ralf
%A Hanslik, Romuald
%A Kemmerling, Günter
%A Lindner, Peter
%A Papagiannopoulos, Aristeidis
%A Pipich, Vitaliy
%A Willner, Lutz
%A Frielinghaus, Henrich
%A Richter, Dieter
%T Tuning the instrument resolution using chopper and time of flight at the small-angle neutron scattering diffractometer KWS-2
%J Journal of applied crystallography
%V 48
%N 6
%@ 1600-5767
%C Copenhagen
%I Munksgaard
%M FZJ-2015-06638
%P 1849-1859
%D 2015
%X 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. The chopper used in concert with a dedicated high-intensity velocity selector enables the tuning at will of the wavelength resolution [Delta][lambda]/[lambda] within a broad range, from 20% (standard) down to 2%, in a convenient and safe manner following pre-planned or spontaneous decisions during the experiment. The new working mode is described in detail, and its efficiency is demonstrated on several standard samples with known properties and on a completely new crystallizable copolymer system, which were investigated using both the conventional (static) and TOF modes.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000365774800030
%$ pmid:26664343
%R 10.1107/S1600576715019019
%U https://juser.fz-juelich.de/record/276171