Inquiry number

INS-0000000317

ABSTRACT

  The BL04B1, “High Pressure and High Temperature” is a white X-ray beamline from a bending magnet. The use of high energy (20 - 150 keV) is suitable for energy-dispersive diffraction experiment using a solid state detector (SSD) and X-ray radiography experiment using a CCD camera. This beamline is designed to conduct research on the structure and properties of materials in the Earth's interior under high-pressure and high-temperature conditions. High-pressure and high-temperature experiments are performed using two large-volume presses: SPEED-1500 and SPEED-Mk.II, both of which are installed in the tandem experimental stations (Experimental hutch 1, hutch 2) (Fig. 1). These large-volume presses are constructed by double-stage (Kawai-type) high-pressure vessels with two kinds of the anvils; the tungsten carbide (WC) and the sintered diamond (SD) (Fig. 2). 30 GPa or 50 GPa has been reached with the WC (26 × 26 × 26 mm³) or the SD (14 × 14 × 14 mm³) over 2500 K (Fig. 3), and its high pressure and high temperature condition is corresponding to the upper or the lower mantle region in Earth's interior.

AREA OF RESEARCH

• Determination of phase relation
• Equation of state of mantle
• Viscosity of melts
• Kinetics of mineral transformation
• Rheology of mantle minerals
• Structure of melts and glasses at high pressures

KEYWORDS

• Scientific field
  High-pressure, Geophysics.
• Equipment
  Large-volume press, Energy-dispersive X-ray diffraction, X-ray radiography

SOURCE AND OPTICS

Fig. 1. Layout of BL04B1 beamline.

Fig. 2. The second stage anvils of the tungsten carbide (WC) and the sintered diamond (SD) cubes.

Fig. 3. Comparisons of the pressure generations using the WC and the SD anvils.

• X-rays at Sample

  Energy range	20 ∼ 150 keV (white)
  Beam size	0.05 × 0.05 ∼ 10 × 10mm2
  Beam divergence (V)	< 0.05 mrad
  Beam divergence (H)	< 0.5 mrad

EXPERIMENTAL STATIONS

• SPEED-1500
• SPEED-Mk.II
• Energy-dispersive X-ray diffraction
• X-ray radiography

PUBLICATION SEARCH

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CONTACT INFORMATION

Please note that each e-mail address is followed by "@spring8.or.jp."

Yuji HIGO
SPring-8 / JASRI
1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198
Phone : +81-(0)791-58-0832
Fax : +81-(0)791-58-0830
e-mail : higo

Kenichi FUNAKOSHI
SPring-8 / JASRI
1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198
Phone : +81-(0)791-58-0832
Fax : +81-(0)791-58-0830
e-mail : funakosi