A new inelastic neutron spectrometer HODACA

Abstract

A new multiplex-type inelastic neutron scattering spectrometer, HOrizontally Defocusing Analyzer Concurrent data Acquisition spectrometer (HODACA), was recently developed and built at the C1-1 cold neutron beam port in JRR-3. The spectrometer is suitable for dynamics measurements in the energy range of $-1$ meV $\lesssim \hslash \omega \lesssim$ 7 meV, catering to a broad array of research fields in physics and material science. HODACA combines 24 detectors and 132 pieces of analyzer crystals and has an estimated measurement efficiency that is 70 times greater than the existing conventional triple-axis spectrometer at the C1-1 beam port. The concept, design, specification, and results of commissioning experiments are described.

11 pages, 16 figures

References in corpus (7)

• Magnetic order in $\alpha$-RuCl${}_3$: a honeycomb lattice quantum magnet with strong spin-orbit coupling
• The role of random electric fields in relaxors
• Field-induced Tomonaga-Luttinger liquid phase of a two-leg spin-1/2 ladder with strong leg interactions
• Anisotropic spin fluctuations in detwinned FeSe
• Classical dipoles on the kagome lattice
• Nature of the spin resonance mode in CeCoIn${}_5$
• Anomalous spin waves in CsFeCl${}_3$ and RbFeCl${}_3$

Cited by in corpus (5)

• Anomalous Electrical Transport in the Kagome Magnet YbFe${}_6$Ge${}_6$
• Dirac Magnon in Honeycomb Lattice Magnet NiTiO3
• Magnetic phase diagram and spin Hamiltonian of antiferromagnet Cs${}_2$CoI${}_4$
• Physical design of cold neutron direct geometry inelastic spectrometer at China Spallation Neutron Source
• Monte-Carlo ray-tracing studies of multiplexed prismatic graphite analyzers for the cold-neutron triple-axis spectrometer at the High Flux Isotope Reactor