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COMPRES 2008 Annual Meeting GSECARS Update  Now have 3 beamlines running 100% of the time: 13-ID-D (undulator), 13- BMD (bending magnet end station),

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Presentation on theme: "COMPRES 2008 Annual Meeting GSECARS Update  Now have 3 beamlines running 100% of the time: 13-ID-D (undulator), 13- BMD (bending magnet end station),"— Presentation transcript:

1 COMPRES 2008 Annual Meeting GSECARS Update  Now have 3 beamlines running 100% of the time: 13-ID-D (undulator), 13- BMD (bending magnet end station), 13-BMC (bending magnet side station, commissioning) Techniques available to the scientific community  Diamond Anvil Cell: energy-dispersive and monochromatic diffraction and spectroscopy  Multi-anvil Press: energy-dispersive and monochromatic diffraction and imaging (250 ton and 1000 ton press; acoustics, tomography)  Microprobe:  XRF,  XAFS,  CMT,  XRD  Microtomography: absorption and edge CMT  Surface scattering and spectroscopy: CTR, XSW, reflectivity, GIXAFS.  Extended X-ray Absorption Fine Structure (EXAFS)  Microcrystal and powder diffraction  Inelastic scattering in the DAC  Brillouin spectroscopy in the DAC

2 COMPRES 2008 Annual Meeting GSECARS allocates 100% of available beam time on the basis of reviewed proposals through web-based forms (both GSECARS and APS ratings). All GSECARS proposals are submitted through the APS General User Program. GSECARS User Program

3 COMPRES 2008 Annual Meeting GSECARS Funding  NSF-EAR In Year 2 of 5 year operations. Flat budget for third year in a row. No money for equipment in FY2008 YearApproved Funding (Notice of Grant Award) $M Actual Funding $M Shortfall $M FY 2005 (Previous award) $1.800$1.700$0.100 FY 2006 (Current award) $1.810 0 FY 2007$2.147$1.811$0.336 FY 2008$2.141$1.815$0.326 Cumulative Shortfall$0.762

4 COMPRES 2008 Annual Meeting GSECARS Funding (cont)  DOE-BES Operations funding for GSECARS, $740K /year  NSF-Geophysics Rheology Grand Challenge project contains $270K for post- doc and supplies for GSECARS. High-pressure tomography project. Funds ½ post-doc with Yanbin Wang.  NSF-EAR Nanoscale Research (NIRT) Award to U. Alaska (T. Trainor, PI; $1.3M, 2004-2008; $310K subcontract to UofC (P. Eng, PI) supports postdoc

5 COMPRES 2008 Annual Meeting GSECARS Funding  NSF-Major Research Instrumentation (Complete, no funds remaining) X-ray optics to complete the 13-BM-C side station ($550K; $88K match; 2004 – 2007) Another MRI grant to UNLV for single-crystal diffraction in DAC has $225 for CCD detector for GSECARS, received.  COMPRES Infrastructure Projects (All complete, no funds remaining) CO2 Laser Heating: Postdoc and laser system support Gas Loading Facility: $118K equipment Multi-anvil Module Project: $68K equipment Johnson Noise Thermometry Project: $36K

6 Canted Undulator Upgrade Proposal submitted to APS SAC Dec. 2006, very positive response. APS will contribute $1.5M for undulators and front-end components Greatly increases time for high-pressure, microprobe is separated and runs 100% of time Allows new undulators optimized for high-energy (high-pressure) and low-energy (spectroscopy, microprobe) Unsuccessful in getting Univ. of Chicago MRI slot for Jan 2008. Now submitting split funding proposals to NASA, NSF, and DOE (~$700K each)

7 COMPRES 2008 Annual Meeting Hardware Development Highlights (COMPRES Infrastructure Projects) ID-D CO 2 heating laser Now commissioned in 13-ID-D. Tom Duffy talk at this meeting. Gas loading facility for DAC Gas loading system built by GSECARS with COMPRES funds, now available to all high-pressure users at the APS. Over 40 cells now loaded Progress report at this meeting. D-DIA30 Being fabricated by Rockland Research. Progress report at this meeting.

8 COMPRES 2008 Annual Meeting GSECARS Personnel News Takeshi Sanehira, post-doc for Johnson noise thermometry project and GSECARS LVP, COMPRES and GSECARS funding. Will remain till end of 2008. Barbara Lavina. Post-doc for single-crystal DAC studies. Innokenty Kantor. Post-doc for DAC. His wife Anastasia is supported by Bayreuth but is also stationed at GSECARS Nadege Hilairet. Post-doc for rheology grand challenge Currently looking for post-doc for high-pressure tomography Alexei Kuznetsov, post-doc for CO2 laser heating development; COMPRES and GSECARS funding has returned to Brazil Atsushi Kubo, post-doc for DAC has returned to Japan

9 COMPRES 2008 Annual Meeting LVP progress: Technical development  Modified Drickamer anvil cell for high T deformation above 30 GPa  6-6 multi-anvil cell for flexible D-DIA applications, Nishiyama et al., 2008  DDIA-30, a COMPRES - GSECARS joint megabar multi-anvil development project  Radiospectrometry and pressure effect on thermocouple e.m.f., a COMPRES - GSECARS joint project

10 COMPRES 2008 Annual Meeting 6-6 MA cell test “second-stage” anvils in cubic cell, vary from run to run Perm- anent “first- stage” anvils on edges

11 COMPRES 2008 Annual Meeting LVP Program progress: Science  Rheology in D-DIA: Serpentine and subduction zone dynamics, Hilairet et al., Science, 2007 hcp iron and rheology of the inner core, Nishiyama et al., GRL, 2007 Preferred orientation slip systems of post-perovskite CaIrO 3, Miyagi et al., EPSL, 2008  High-P tomography: Equation of state of silicate glasses at high P and T, Lesher et al., PEPI, 2008 Surface tension of Fe-S, Fe-P, and Ni-S melts at high pressure, Terasaki et al., PEPI, HPR, 2008  High P-T crystallography: Symmetry of CaSiO 3 perovskite to 18 GPa and 2000 K, Uchida et al., 2008, EPSL, in press  High P melting: Allende meteorite: solidus and liquidus phases at high P, Danielson et al., 2007 Fe-S, B. Chen et al., HPR, 2008 Si melting curve, Kubo et al., Phys. Chem. Solids, 2008  Ultrasonic elasticity and self-consistent equation of state: MgSiO 3 enstatites, Kung et al., GRL, 2005 Mg 2 SiO 4 ringwoodite, Li et al., 2005 (Mg,Fe) 2 SiO 4 wadsleyite, Liu et al., PEPI, 2008

12 COMPRES 2008 Annual Meeting Ø 5 μm X-ray Ø 20 μm flat top laser beam 30 μm Prakapenka et al., High Pressure Research, 2008 (in press)

13 COMPRES 2008 Annual Meeting

14 A gradual spin transition of iron occurs over a pressure-temperature range extending from about 1000 kilometers in depth and 1900 kelvin to 2200 kilometers and 2300 kelvin in the lower mantle Jung-Fu Lin, et al., Science 317, 1740 (2007)

15 COMPRES 2008 Annual Meeting Brillouin spectroscopy Raman spectroscopy Fluorescent spectroscopy (ruby) Optical spectroscopy (500-1600 nm) Remarkable combination of in-situ high resolution microdiffraction at HP/HT in DAC with optical spectroscopy: 13-BM-D (GSECARS)

16 COMPRES 2008 Annual Meeting Fit: 577K

17 COMPRES 2008 Annual Meeting GSECARS Near Term Goals  Pursue funding and (hopefully) design and construction of canted undulators.  Bring the 13-BM-C station fully online with scientific programs in interface diffraction and single-crystal diffraction at high pressure  Complete D-DIA30 project  Bring CO 2 laser heating for the DAC in 13- ID-D into full user program

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