title: Six-axis multi-anvil press for high-pressure, high-temperature neutron diffraction experiments.
abstract: We developed a six-axis multi-anvil press, ATSUHIME, for high-pressure and high-temperature in situ time-of-flight neutron powder diffraction experiments. The press has six orthogonally oriented hydraulic rams that operate individually to compress a cubic sample assembly. Experiments indicate that the press can generate pressures up to 9.3 GPa and temperatures up to 2000 K using a 6-6-type cell assembly, with available sample volume of about 50 mm(3). Using a 6-8-type cell assembly, the available conditions expand to 16 GPa and 1273 K. Because the six-axis press has no guide blocks, there is sufficient space around the sample to use the aperture for diffraction and place an incident slit, radial collimators, and a neutron imaging camera close to the sample. Combination of the six-axis press and the collimation devices realized high-quality diffraction pattern with no contamination from the heater or the sample container surrounding the sample. This press constitutes a new tool for using neutron diffraction to study the structures of crystals and liquids under high pressures and temperatures.
authors.affiliation: Quantum Beam Science Center, Japan Atomic Energy Agency, Ibaraki 319-1195, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Sano-Furukawa
authors.affiliation: Quantum Beam Science Center, Japan Atomic Energy Agency, Ibaraki 319-1195, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Hattori
authors.affiliation: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Arima
authors.affiliation: The University of Shiga Prefecture, Shiga 522-8533, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Yamada
authors.affiliation: Sumitomo Heavy Industries Co., Ltd., Ehime 792-0001, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Tabata
authors.affiliation: Sumitomo Heavy Industries Co., Ltd., Ehime 792-0001, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Kondo
authors.affiliation: Sumitomo Heavy Industries Co., Ltd., Ehime 792-0001, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Nakamura
authors.affiliation: Geochemical Research Center, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Kagi
authors.affiliation: Geochemical Research Center, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Yagi