The Tool for looking water in the earth's interior; High-pressure neutron diffractometer PLANET

Hattori, Takanori   ; Arima, Hiroshi; Sano, Asami   ; Utsumi, Wataru; Nagai, Takaya*; Iitaka, Toshiaki*; Kagi, Hiroyuki*; Katayama, Yoshinori; Inoue, Toru*; Yagi, Takehiko*

The PLANET is the new high-pressure neutron beamline now being constructed at the intense pulsed neutron source J-PARC. This beamline aims at revealing the effect of water on dynamics of the interior of the Earth and planets by using the neutron character that is sensitive to hydrogen. The most characteristic feature of this beamline is to posses the huge 6-axis press with the maximum load of 500 ton/axis, which can simultaneously generate high-pressure and high-temperature condition of 30 GPa and 2000 K. Coupled with the state-of-the-art techniques in neutron diffraction and radiography, the beamline offers the microscopic and macroscopic information of materials at high-PT condition.