Science Highlights 1998
Science highlights of research occuring at the APS.
Advances in High-Energy-Resolution
X-ray Scattering at Beamline 3-ID (Jun. 30)
Beamline
3-ID at the APS is one of the strategic instruments used by the
Synchrotron Radiation Instrumentation Collaborative Access Team
(SRI-CAT). This beamline is dedicated to high-energy-resolution
x-ray scattering studies.
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Measurement & Control
of Particle-Beam Trajectories in the Advanced Photon Source Storage
Ring (Jul. 8)
The
orbit stability requirements for the APS storage ring were specified
during the accelerator-design phase. In order to provide stable x-ray
beams, the rms beam motion must be less than 5% of the particle-beam
dimensions at the source point.
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MAD Analysis of FHIT
at the Structural Biology Center (Jul. 8)
The
three-dimensional multiwavelength anomalous diffraction (MAD)
structure of the fragile histidine triad (FHIT)
protein, a member of a large and highly conserved family of proteins
known as the histidine triad (HIT) family of
proteins, has been determined by a group using the 19-ID beamline
at the Advanced Photon Source (APS).
(pdf) (html)
X-ray Imaging & Microspectroscopy
of the Mycorrhizal Fungus-Plant Symbiosis (Jun. 30)
Approximately
90% of the world's vascular plants, including the majority of all
economic crops, belong to families that commonly have symbiotic
associations with mycorrhizal fungi. While such associations are
known to increase plant viability under low nutrient conditions,
in some instances mycorrhizal fungi can also moderate toxicity
effects in plants growing in soils containing elevated concentrations
of heavy metals.
(pdf) (html)
