However, one of main properties of x-rays that makes them powerful -- their high penetrating power – also limits the scope of application of this imaging technique. In particular, imaging thick or heterogeneous samples at the micron scale generally requires that the sample be thinned, which is often impractical or impossible.
Brito is the Mong Family Sesquicentennial Faculty Fellow in biomedical engineering. Lambert is the Gordon Lankton Sesquicentennial Faculty Fellow in applied and engineering physics. Lancaster teaches in the Department of Chemistry and Chemical Biology. Yapici is the Nancy and Peter Meinig Family Investigator in neurobiology and behavior.
“The Sloan research fellows are the rising stars of the academic community,” said Paul L. Joskow, president of the Alfred P. Sloan Foundation, in a statement. A total of 126 U.S. and Canadian researcher were awarded Sloan fellowships this year.
CHESS capillaries are designed to have rotationally symmetric ellipsoidal shapes to intercept a large beam area, and thus are suitable focusing optics for current CHESS beamlines which delivers an x-ray beam into 10~50um spot sizes with large x-ray flux.
The program’s name SRCCS, stands for Summer Research for Community College Students. Thanks to several volunteer mentors, we have exciting projects especially designed for SRCCS participants posted on our website: https://www.classe.cornell.edu/StudentOpportunities/SrccsProgram.html.
The annual awards support women life scientists conducting innovative, risk-taking research.
Margaret Bynoe, associate professor of immunology in the College of Veterinary Medicine; Carolyn Sevier, assistant professor of molecular medicine, also in the veterinary college; and Olena Vatamaniuk, associate professor of crop and soil sciences in the College of Agriculture and Life Sciences, each received awards of $15,000.
However, the "stopping power" of silicon is limited; it doesn't efficiently absorb (and ultimately detect) x-rays of energies above approximately 20 keV. For x-ray science applications at higher energies (which are the primary mission of CHESS) different approaches are required; using Cadmium Telluride (CdTe) as a sensor material is one of them. The Gruner group at Cornell has chosen to develop CdTe-based versions of the world-leading MM-PAD and Keck PAD detectors, to allow experiments at x-ray energies up to 200 keV.
The Amazon Basin is a complex network of interconnected terrestrial and aquatic environments, with chemical diversity dictated by the bedrocks and soils through which river tributaries pass. Overfishing has led to considerable declines in some species, while deforestation is producing stronger, earlier flood pulses, altering the flood cycle that migratory fishes rely upon.
The planning for the CESR upgrades is well under way, with Dave Rice leading the charge. The beamline project is being led by Chris Conolly. The beamline design process has taken a methodical path involving our user community, scientific advisory panels, and an external review committee that met on Friday, December 16th.