COMPRES 2008 Annual COMPRES 2008 Annual Meeting 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
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 - PowerPoint PPT Presentation
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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
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
13ID-C13ID-D13ID-B 13ID-A
13BM-D
13BM-C13BM-B
13ID-C213ID-D13ID-B 13ID-A
13BM-D
13BM-C13BM-B13ID-C1
LVP Laser Heated DAC
Microprobe
Horz. Focusing Mirror
Existing Mono. ID-C2 / DDiffractometer
Vert. Focusing Mirror
New Mono. ID-C1
New Horz. Deflecting Mirrors
ID Mono.
New Wall
Horz. Focusing Mirror
A.
B. Vert. Focusing Mirror
New Door
New Beam Center Line
New Shutters:C2/D& C1Shielded Beam Pipe
13ID-C13ID-D13ID-B 13ID-A
13BM-D
13BM-C13BM-B
13ID-C13ID-D13ID-B 13ID-A
13BM-D
13BM-C13BM-B
13ID-C213ID-D13ID-B 13ID-A
13BM-D
13BM-C13BM-B13ID-C1
13ID-C213ID-D13ID-B 13ID-A
13BM-D
13BM-C13BM-B13ID-C1
LVP Laser Heated DAC
Microprobe
Horz. Focusing Mirror
Existing Mono. ID-C2 / DDiffractometer
Vert. Focusing Mirror
New Mono. ID-C1
New Horz. Deflecting Mirrors
ID Mono.
New Wall
Horz. Focusing Mirror
A.
B. Vert. Focusing Mirror
New Door
New Beam Center Line
New Shutters:C2/D& C1Shielded Beam Pipe
Canted Undulator UpgradeCanted 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)
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
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