Multiple Pole Figure Extraction from Pulsed White Beam Angle-Dispersive Neutron Diffraction Data

The continuous wavelength spectrum available at pulsed neutron sources and the use of a positionsensitive detector can drastically reduce the number of sample orientations during pole figure scanning compared to the conventional method using monochromatic neutrons. This advantage has to be paid for by a more complex way in extracting pole figures from the measured data. The paper describes the experimental setup, the scanning procedure and the data evaluation of neutron diffraction texture measurements at a spallation source. A multitude of individual pole figures can be measured simultaneously within a reasonable time. The paper focuses on strategy and practical management to obtain pole figures from two-dimensional time-of-flight diffraction patterns.