Development of high-pressure neutron diffractometer at MLF, J-PARC

Arima, Hiroshi; Hattori, Takanori   ; Komatsu, Kazuki*; Sano, Asami   ; Abe, Jun; Utsumi, Wataru; Kagi, Hiroyuki*; Suzuki, Akio*; Suzuya, Kentaro; Kamiyama, Takashi; Yagi, Takehiko*

The powder diffractometer dedicated to high-pressure experiments (PLANET) is now being constructed on BL11 at the spallation neutron source of J-PARC. PLANET aims to study structures of hydrogen-bearing materials including dense hydrous minerals of the Earth' s deep interior, magmas and light element liquids. The instrument will realize diffraction and radiography experiments for powder and liquid/glass samples at high pressures up to 20 GPa and 2000 K. It covers d spacing from 0.2 to 4.1 at 90 degree bank within the first frame. Here we present design of PLANET and discuss the strategy for high-pressure device deployment.