Suite of the neutron spectrometers in J-PARC MLF

Kajimoto, Ryoichi  ; Yokoo, Tetsuya*; Nakamura, Mitsutaka   ; Kawakita, Yukinobu  ; Matsuura, Masato*; Endo, Hitoshi*; Seto, Hideki*; Ito, Shinichi*; Nakajima, Kenji  ; Kawamura, Seiko   

There are 6 inelastic scattering neutron beamlines in the Materials and Life Science Facility (MLF) in the Japan Proton Accelerator Research Complex (J-PARC), covering a wide dynamic range from 10 meV to 10 meV. A high energy part above sub-meV is covered by 4 direct-geometry spectrometers: HRC, AMATERAS, 4SEASONS, and POLANO, while eV and sub-eV dynamics are covered by an indirect-geometry spectrometer DNA and the spin echo instrument suite VIN ROSE, respectively. The suite of these 6 spectrometers in MLF now contributes the scientific research activities, and produced scientific outcomes in a diverse research fields such as superconductivities, quantum spin systems, energy materials, amorphous materials, liquids, and soft and biological matters. In this presentation, we review the major specifications, recent upgrades, and outcomes of the MLF neutron spectrometers.