High pressure neutron diffraction at J-PARC

Hattori, Takanori   ; Sano, Asami   ; Komatsu, Kazuki*; Machida, Shinichi*; Abe, Jun*; Funakoshi, Kenichi*

PLANET is a high-pressure neutron beamline recently constructed at J-PARC. The most characteristic features of the beamline are its high performance in obtaining clean data with almost no contamination of the signal from a sample container and wide accessible d-spacing range. The beamline is equipped with various high pressure presses, such as the large six-axis multi-anvil high-pressure press (ATSUHIME), Paris-Edinburgh presses, the low-temperature press and a diamond anvil cell. By using these devices, in-situ neutron diffraction experiments are possible over wide PT condition currently of 40-2000 K and/or up to 20 GPa. Combining these presses with the aforementioned beamline characters enables the precise structure determination not only of crystalline materials but also of liquid and amorphous materials. In this presentation, I will introduce the specification of the beamline and recent results obtained at PLANET.