The PSD neutron diffractometer is suitable for atomic structure investigations of amorphous and crystalline materials, as well as liquids where the resolution requirements are not high. The measured diffraction pattern is related to the positions of the atoms relative to each other in the material. PSD is a two-axis diffractometer equipped with a linear position sensitive detector system. The detector assembly is mounted on the diffractometer arm and it spans a scattering angle range of 25° at a given detector position. The entire diffraction spectrum is measured in five steps.
The detector of the PSD is a system from Studsvik NFL (Sweden). It is based on three 3He filled linear position sensitive Reuter-Stokes tubes (610 mm in length, 25 mm diameter). The three detectors are placed parallel to the scattering plane, above each other. Data transfer and instrument control has been done by PC-AT (Master PC) with Eagle I/O card. The instrument software package has been developed by the local instrument staff. Recently the sample environment has been renewed. An in-situ high temperature cell has been designed and built, with temperature range from room temperature to 900°C.
- M. Fábián: PSD Neutron Diffractometer, Research Instruments of the Budapest Neutron Centre, Handbook of the CETS, Published by Budapest Neutron Centre, ISBN 978-963-12-8757-8, pp.59-71 (2017)