A New Flat-Cone Diffractometer at Studsvik Neutron Research Laboratory for Investigations of Crystalline Macromolecules

Article type: Research Article

Authors: Sjölin, Lennart | Andersen, Leif^; | Lönn, Benny | Grönros, Martin

Affiliations: Department of Inorganic Chemistry, Chalmers University of Technology and the University of Göteborg, S-412 96 Göteborg, Sweden | The Studsvik Neutron Research Laboratory, S-611 82 Nyköping, Sweden | Current address: IKEA AB, Älmhult, Sweden | Department of Physical Chemistry, Chalmers University of Technology and the University of Göteborg, S-412 96 Göteborg, Sweden

Abstract: The relatively recent development of position-sensitive detectors for neutrons and X-rays has led to the possibility of large improvements in the efficiency of data collection with single-crystal diffractometers. Instruments using position-sensitive detectors do not have the mechanical complexity usually associated with multi-counter diffractometers. The construction of position-sensitive detectors is a well established art and these detectors are commercially available for both X-rays and neutrons. The design of a single-crystal diffractometer using a linear position-sensitive detector in flat-cone geometry is described and results from measurement .of a complete neutron data set from a crystalline macromolecule are reported. Practical details of the construction of the diffractometer, of the collection and statistical handling of the data and of data rates are discussed.

Keywords: Diffractometer, flat-cone, neutron data, Studsvik Neutron Research Laboratory, macromolecules

DOI: 10.1080/10238169408200184

Journal: Journal of Neutron Research, vol. 2, no. 1, pp. 21-29, 1994