https://doi.org/10.1051/epjconf/20158303003
Opening the terahertz window on the OSIRIS spectrometer
1 SIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, UK
2 Instituto de Estructura de la Materia IEM-CSIC, Consejo Superior de Investigaciones Científicas, Serrano 123, Madrid 28006, Spain
3 Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
a Corresponding author: F. Demmel (franz.demmel@stfc.ac.uk)
b and F. Fernandwz-Alonso(felix.fernandez-alonso@stfc. ac.uk)
Published online: 23 January 2015
A cooled and mechanically retractable beryllium filter has been installed and commissioned on the low-energy OSIRIS spectrometer at ISIS. This instrument development extends the energy-transfer range of the spectrometer up to ca. 20 meV (∼ 5 THz), leading to an excellent resolution at THz frequencies and substantial gains in detected flux relative to existing capabilities on the neighbouring IRIS spectrometer. Herein, we provide a concise account of this new capability for high-resolution neutron spectroscopy in the THz domain, as well as outline a number of ongoing and potential scientific opportunities in condensed-matter physics, chemistry, and materials science.
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
