TY - JOUR
T1 - Brillouin spectrometer interfaced with synchrotron radiation for simultaneous x-ray density and acoustic velocity measurements
AU - Sinogeikin, Stanislav
AU - Bass, Jay
AU - Prakapenka, Vitali
AU - Lakshtanov, Dmitry
AU - Shen, Guoyin
AU - Sanchez-Valle, Carmen
AU - Rivers, Mark
N1 - Funding Information:
The authors thank GSECARS staff Fred Sopron, Mike Jagger, and Nancy Lazars who provided invaluable support for this program. This work was supported by COMPRES and the National Science Foundation. GeoSoilEnviroCARS [Sector 13, Advanced Photon Source (APS), Argonne National Laboratory] is supported by the National Science Foundation—Earth Sciences (EAR-0217473), Department of Energy—Geosciences (DE-FG02-94ER14466), and the State of Illinois. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. W-31-109-ENG-38.
PY - 2006
Y1 - 2006
N2 - We describe a new Brillouin spectrometer that has been installed on a synchrotron x-ray beamline for simultaneous measurements of sound velocities (by Brillouin scattering) and density (by x-ray diffraction). The spectrometer was installed at the 13-BM-D station (GSECARS) of the Advanced Photon Source. This unique facility has been tested in studies of transparent single crystal and polycrystalline materials at high pressure and temperature. The equation of state, acoustic velocities, and, hence, elastic moduli of materials as a function of pressure and temperature can now be determined without resort to a secondary pressure standard, such as the ruby fluorescence scale, or the equation of state of standard materials such as Au, Pt, or MgO, thus offering the potential to determine an absolute pressure scale. This article describes the design of the combined Brillouin-x-ray system and the first experimental results obtained. As a general-user facility, the system was designed to require minimal setup time and alignment of sensitive optics, run-time control and adjustments of optics from outside the experimental station, compatibility with powder and single crystal x-ray diffraction measurements, and no interference with other experimental techniques used on the beamline. To satisfy these requirements we adopted a novel optical design for the Brillouin system with a vertical scattering plane. Examples of measurements of acoustic velocities and elastic moduli on single crystal NaCl (B1) and polycrystalline NaCl (B2) at high pressure and single crystal velocities and elastic moduli of MgO at high temperature (to 600 °C) and at high pressure are presented.American Institute of Physics
AB - We describe a new Brillouin spectrometer that has been installed on a synchrotron x-ray beamline for simultaneous measurements of sound velocities (by Brillouin scattering) and density (by x-ray diffraction). The spectrometer was installed at the 13-BM-D station (GSECARS) of the Advanced Photon Source. This unique facility has been tested in studies of transparent single crystal and polycrystalline materials at high pressure and temperature. The equation of state, acoustic velocities, and, hence, elastic moduli of materials as a function of pressure and temperature can now be determined without resort to a secondary pressure standard, such as the ruby fluorescence scale, or the equation of state of standard materials such as Au, Pt, or MgO, thus offering the potential to determine an absolute pressure scale. This article describes the design of the combined Brillouin-x-ray system and the first experimental results obtained. As a general-user facility, the system was designed to require minimal setup time and alignment of sensitive optics, run-time control and adjustments of optics from outside the experimental station, compatibility with powder and single crystal x-ray diffraction measurements, and no interference with other experimental techniques used on the beamline. To satisfy these requirements we adopted a novel optical design for the Brillouin system with a vertical scattering plane. Examples of measurements of acoustic velocities and elastic moduli on single crystal NaCl (B1) and polycrystalline NaCl (B2) at high pressure and single crystal velocities and elastic moduli of MgO at high temperature (to 600 °C) and at high pressure are presented.American Institute of Physics
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U2 - 10.1063/1.2360884
DO - 10.1063/1.2360884
M3 - Article
AN - SCOPUS:33750494370
SN - 0034-6748
VL - 77
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
IS - 10
M1 - 103905
ER -