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Hattori, Takanori; Sano, Asami; Machida, Shinichi*; Abe, Jun*; Funakoshi, Kenichi*; Arima, Hiroshi*; Nakamura, Mitsutaka; Iida, Kazuki*; Yamada, Takeshi*; Oishi, Kazuki*; et al.
no journal, ,
Twelve years have passed since the J-PARC distributed the first beam, and six years have passed since the high-pressure diffraction beamtime PLANET started user program. In this period, we have made efforts to extend accessible PT range, improve data quality, and introduce high-pressure technique to other neutron scattering, such as inelastic (INS), quasielastic (QENS) and small-angle scattering experiments (SANS). In this talk, I will introduce recent developments and research outcomes.
Sano, Asami
no journal, ,
Since hydrogen has a large scattering power for neutron, neutron diffraction can be an important tool in the investigation of hydrogen in minerals. The high-pressure neutron diffractometer PLANET in the MLF at J-PARC is equipped with a 6-axis type multi-anvil press to conduct high-temperature neutron diffraction experiments at high pressure. With the application of the multi-anvil assembly (MA) 6-6, experiments have been routinely performed. One of the advantages of using the MA6-6 is that the anvil gap is located at 2
= 90
, where the detector is located. However, the available pressure is currently limited below 12 GPa using MA6-6 with TEL size of 7 mm. It is necessary to expand the conditions to cover the mantle transition zone that is considered as an important reservoir of water. In this talk, I will present recent developments with applications of MA6-8 to expand the PT conditions in PLANET.