1 / 17

GSECARS Update

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

morrie
Download Presentation

GSECARS Update

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 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: mXRF, mXAFS, mCMT, mXRD 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 COMPRES 2008 Annual Meeting

  2. GSECARS User Program • 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. COMPRES 2008 Annual Meeting

  3. 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 COMPRES 2008 Annual Meeting

  4. 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 COMPRES 2008 Annual Meeting

  5. 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: $68Kequipment • Johnson Noise Thermometry Project: $36K COMPRES 2008 Annual Meeting

  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. Hardware Development Highlights • (COMPRES Infrastructure Projects) • ID-D CO2 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. COMPRES 2008 Annual Meeting

  8. 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 COMPRES 2008 Annual Meeting

  9. 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 COMPRES 2008 Annual Meeting

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

  11. 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 CaIrO3, 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 CaSiO3 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: • MgSiO3 enstatites, Kung et al., GRL, 2005 • Mg2SiO4 ringwoodite, Li et al., 2005 • (Mg,Fe)2SiO4 wadsleyite, Liu et al., PEPI, 2008 COMPRES 2008 Annual Meeting

  12. Ø 5 μm X-ray Ø 20 μm flat top laser beam 30 μm COMPRES 2008 Annual Meeting 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 COMPRES 2008 Annual Meeting Jung-Fu Lin, et al., Science 317, 1740 (2007)

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

  16. Fit: 577K COMPRES 2008 Annual Meeting

  17. 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 CO2 laser heating for the DAC in 13-ID-D into full user program COMPRES 2008 Annual Meeting

More Related