TY  - JOUR
AU  - Radulescu, Aurel
AU  - Szekely, Noemi
AU  - Polachowski, Stephan
AU  - Leyendecker, Marko
AU  - Amann, Matthias
AU  - Buitenhuis, Johan
AU  - Drochner, M.
AU  - Engels, Ralf
AU  - Hanslik, Romuald
AU  - Kemmerling, Günter
AU  - Lindner, Peter
AU  - Papagiannopoulos, Aristeidis
AU  - Pipich, Vitaliy
AU  - Willner, Lutz
AU  - Frielinghaus, Henrich
AU  - Richter, Dieter
TI  - Tuning the instrument resolution using chopper and time of flight at the small-angle neutron scattering diffractometer KWS-2
JO  - Journal of applied crystallography
VL  - 48
IS  - 6
SN  - 1600-5767
CY  - Copenhagen
PB  - Munksgaard
M1  - FZJ-2015-06638
SP  - 1849-1859
PY  - 2015
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000365774800030
C6  - pmid:26664343
DO  - DOI:10.1107/S1600576715019019
UR  - https://juser.fz-juelich.de/record/276171
ER  -