JULY 6, 2001Researchers using high-brilliance x-ray beams from the Structural Biology Center undulator beamline 19-ID at the Advanced Photon Source have obtained a detailed picture of how the ribosome allows accurate translation of the genetic code. What they found offers new information on how proteins are formed and how they create the chain of proteins that make up an organism.
Science & Highlights 2001
JUNE 8, 2001The Advanced Photon Source (APS) low-energy undulator test line (LEUTL) has achieved "saturation" of self-amplified spontaneous emission in a mirrorless free-electron laser at a wavelength over 1000 times shorter than the previous record. This important accomplishment demonstrated that such free-electron lasers based on this process may one day provide laser-quality x-ray beams and possibly open exciting new horizons for research in dozens of scientific fields.
APRIL 10, 2001A high-throughput x-ray microtomography system (XMS) that can acquire, reconstruct, and interactively display rendered 3-D images of a sample at micrometer-scale resolution within minutes has been developed at Advanced Photon Source (APS) beamline 2-BM, which is managed by the Synchrotron Radiation Instrumentation Collaborative Access Team (SRI-CAT). This system could bring better understanding of an array of scientific and technological problems, ranging from failure in microelectronic devices to structures in biological samples.
MARCH 3, 2001Researchers at the Advanced Photon Source have determined the phonon density of states for iron under pressures up to 153 gigapascals, equivalent to those found at the Earth's core. Proving long-held theories for iron at these pressures opens doors to a diverse array of basic and applied investigations, including seismological interpretation, planetary science, and the development of new thin-film materials, such as data-storage media.
JANUARY 17, 2001Scientists from the University of Wisconsin-Madison have found compelling evidence that micro-organisms play a central role in the formation of certain mineral deposits. These results shed light on the basic question of biology's function in the formation of some metal ores, and hold out the promise for applications in mining-site remediation.