R3: High-pressure science and deep Earth’s material

[R3P-02] Technical developments of high-pressure and high-temperature neutron diffraction experiment under mantle transition zone conditions

*Sho Kakizawa¹, Asami Sano-Furukawa², Hiroyuki Kagi³, Yuichiro Mori³, Jun Abe⁴, Takanori Hattori² (1. JASRI, 2. JAEA, 3. UTokyo, 4. CROSS)

Keywords:Neutron diffraction, high pressure, high temperature

The BL11 PLANET at J-PARC MLF is equipped with a large 6-axis press, which enables neutron diffraction experiments under high-pressure and high-temperature. We have developed a neutron diffraction technique in order to conduct experiments under even higher pressures while suppressing blowout. As a result, neutron diffraction experiment at high-pressures corresponding to the mantle transition zone became possible. On the other hand, the signal intensity is weak and requires a long measurement time, so it is necessary to develop a shorter measurement time in the future.