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DAC Center at NSLS Q. Z. Guo (X17B3) Jingzhu Hu (X17C) Z. X. Liu (U2A) R. J. Hemley (IR spokesperson) H. K. Mao (Xray spokesperson) Geophysical Laboratory,

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Presentation on theme: "DAC Center at NSLS Q. Z. Guo (X17B3) Jingzhu Hu (X17C) Z. X. Liu (U2A) R. J. Hemley (IR spokesperson) H. K. Mao (Xray spokesperson) Geophysical Laboratory,"— Presentation transcript:

1 DAC Center at NSLS Q. Z. Guo (X17B3) Jingzhu Hu (X17C) Z. X. Liu (U2A) R. J. Hemley (IR spokesperson) H. K. Mao (Xray spokesperson) Geophysical Laboratory, Carnegie Institution of Washington COnsortium for Materials Properties Research in Earth Sciences

2 IR X-RAY U2A X17B X17C DAC Center at NSLS

3 X17B3 beam line On-line laser-heating Cryogenic conditions EDXD ADXD Microbeam < 10 microns 100 days/year beam time X17C beam line EDXD ADXD <10 microns white beam Sagittal Laue focusing mono 200 days/year beam time U2A beam line Cryogenic conditions Diffraction limited IR microscopy On-line Raman 200 days/year beam time On-site laboratory Ruby P-calibration Portable on-line Raman Sample prep Cryogenic gas loading Supporting all HP beamlines Capabilities

4 X17 Superconducting Wiggler White Beam Flux ALS Superbend NSLS X17 HPCAT BM 2002 HPCAT BM 2005 HPCAT ID 2002 HPCAT ID 2005 IR Brilliance X-Ray Brilliance Xray Spectroscopy Time Resolved XRD Xray Diffraction Amorphous Single-crystal XRD NSLS has a very bright future in the next decade

5 Dedicated high-pressure XRD beamline Dedicated high-pressure IR beamline Integration of XRD and laser-heating high P-T Double-sided laser heating Resistive heating and XRD above 100 GPa-1000 K Integration of HP XRD, IR, on-line Raman at cryogenic T Side diffraction for HP elasticity tensor and rheology Single crystal diffraction above 20 GPa (to 60 GPa) XRD of nanometer-size single crystal XRD of amorphous structure at high P Pressure calibration based on volume and elasticity Firsts

6 Dedicated high-pressure XRD beamlines Dedicated high-pressure IR beamline Integration of XRD, IR, on-line Raman at HP, Hi-Lo T Axial XRD for EOS and phase transition studies Radial XRD for HP elasticity tensor and rheology Micrometer to nanometer mineralogy with single-xl XRD Brightest high-energy white x-ray in the U.S. 500 day/yr beam time for COMPRES Lowest cost (needs $1200/day b.t.), 1/4 of other facilities Most productive HP geoscience facility in the world Unique & Routine Operations But unsustainable at the current funding of $660/day b.t.

7 Xie et al, GCA 2002 Chen et al, PNAS 2003 New mineral, Tuite, in shocked meteorite Two new minerals, HP forms of chromite, discovered in shocked meteorite & synthesized in DAC Thin chromite (presumed) precipitates in olivine from garnet peridotite. Green, PNAS 2003 Ultrahigh-pressure metamorphism and meteorite impact metamorphism

8 New Lunar Mineral, Hapkite Anand et al, PNAS 2004

9 Rapid growth of superhard single- crystal Diamond by Homoepitaxial CVD method [Yan, et al, 2004] XRD, IR, Raman, and laser heating with 10 carat moissanite anivl cell [Xu, et al, 2004] CVD diamond anvils reaching 230 GPa [Mao, et al, 2004] Big MAC and CVD DAC

10 - ANOMALOUS TRANSITIONS IN ICE VIII Pressure dependence of IR translational and rotational mode frequencies in D 2 O  No transition [Klug et al., Phys. Rev. Lett., 2004 submitted] A WEALTH OF FINDINGS: HP IR studies ?

11 HP IR study of Amphibole Group from Dip. Scienze della Terra, Università di Chieti, Chieti Scalo (2004) Unpublished work, do not circulate

12 HP hydrogen bond symmetrization in methane clathrate Klug et al June 2004; unpublished work, do not circulate

13 Original PRT Members Earl Skelton- -- NRL Dave Schiferl -- LANL Jagan Akella -- LLNL Paul McMillan -- ASU Funding Sources NSF-EAR NSF-DMR DOE-DP DOE-BES NASA Navy Carnegie Beamline Development Tom Duffy Guoyin Shen Yanzhang Ma Maddury Somayazulu Michael Hanfland Ming Li Technical Help Larry Carr Peter Eng Larry Finger Alexander Goncharov Gwyn Williams Yan Wu Mark Rivers Users Acknowledgments


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