Speaker
Description
T-REX is a bi-spectral direct geometry neutron chopper spectrometer, currently being constructed at the ESS. The instrument is a collaboration between Forschungszentrum Jülich and Consiglio Nazionale delle Ricerche (CNR). It is a very versatile instrument and will mainly focus on probing single crystals in the scientific areas of low dimensional, topological and frustrated materials, quantum magnets, high temperature superconductors, multifunctional oxides, and many more.
The instrument will measure a wide dynamic range with good wave-vector resolution over the energy transfer range from 20 µeV to 140 meV. Measurements will use non-polarized and polarized neutrons, for both cold and thermal neutrons. Thermal neutron polarization is achieved with the SEOP setup. Neutron spin analysis in XYZ is performed with the magic PASTIS setup.
The chopper system enables poly-chromatic illumination of the sample and variable acquisition time frames by means of a specially developed FAN chopper that suppresses selectively the unwanted subpulses. The secondary spectrometer features a vacuum path of 3m from sample to detector, which will cover a dynamic range that extends from 0.05 Å-1 < Q < 10 Å-1, thus exploring a wide range of the reciprocal space. The novel Multi-Grid detector system is covered in a separate abstract. We will give an overview over the current built status of the instrument, timeline to completion and features offered to the user community.
