Design and performance of a novel neutron powder diffractometer
PEARL at TU Delft
L. Van Eijck (TU Delft - RST/Neutron and Photon Methods for Materials)
L. D. Cussen (Cussen Consulting)
G. J. Sykora (Rutherford Appleton Laboratory)
E. M. Schooneveld (Rutherford Appleton Laboratory)
N. J. Rhodes (Rutherford Appleton Laboratory)
A. A. Van Well (TU Delft - RST/Neutron and Photon Methods for Materials)
C. Pappas (TU Delft - RST/Neutron and Photon Methods for Materials)
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Abstract
The performance of the new neutron powder diffraction instrument PEARL that is installed at the research reactor of Delft University of Technology is reported. It is based on the optimization concepts developed by Cussen [Nucl. Instrum. Methods Phys. Res. Sect. A (2007), 583, 394-406], which lead to high performance competing with existing constant-wavelength neutron powder diffractometers, despite the relatively low source brightness of the 2MW reactor of Delft University of Technology.This manuscript describes the novel neutron powder diffractometer PEARL at Delft University of Technology and shows the first experimental results.