A large-volume high-pressure and high-temperature apparatus for in situ X-ray observation, 'SPEED-Mk.II'

被引：113

作者：

Katsura, T ^{[1
]}

Funakoshi, K

Kubo, A

Nishiyama, N

Tange, Y

Sueda, Y

Kubo, T

Utsumi, W

机构：

[1] Okayama Univ, Inst Study Earths Interior, Misasa, Tottori 6820193, Japan

[2] Japan Synchrotron Radiat Res Inst, Hyogo 6785198, Japan

[3] Ehime Univ, Geodynam Res Ctr, Matsuyama, Ehime 7908577, Japan

[4] Tokyo Inst Technol, Dept Earth & Planetary Sci, Tokyo 1528511, Japan

[5] Tohoku Univ, Inst Mineral Petrol & Econ Geol, Sendai, Miyagi 9808578, Japan

[6] Japan Atom Energy Res Inst, Sayo 6795148, Japan

来源：

PHYSICS OF THE EARTH AND PLANETARY INTERIORS | 2004年 / 143卷

关键词：

high-pressure and high-temperature experiment; in situ X-ray observation; KAWAI-type apparatus; oscillation system;

D O I：

10.1016/j.pepi.2003.07.025

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

SPEED-Mk.II, the second KAWAI-type high P-T apparatus for in situ X-ray observation that was installed at the bending magnet beam line at SPring-8, is described. The guide block system was designed so that the change of the relative dimension of the cubic compression space with press load can be minimized by repeated adjustments. The hydraulic system was designed so as to enable smooth compression and decompression. These precise controls should be advantageous for high-pressure Generation. especially when sintered diamond (SD) anvils are used. An oscillation system was equipped for the first time in a large volume press, making it possible to obtain high-quality diffraction patterns even when the number of sample grains is limited. The use of the oscillation system also reduces errors in pressure determination that may be caused by insufficient averaging of diffraction angles over grains in a limited diffraction volume, because the oscillating grains should sweep through the 20 range that is allowed by the finite widths of the optical slits. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：497 / 506

页数：10