The Advanced Photon Source (APS) at Argonne National Laboratory is a national synchrotron x-ray research facility funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. The APS provides the brightest x-ray beams in the Western Hemisphere to more than 5,000 scientists worldwide.
APS Today
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General User Program Proposal Deadline for Run 2008-3
Science & Research Highlights
Unveiling the Secrets of Nanoparticle Haloing
JUNE 9, 2008
A new colloidal stabilization method characterized by scientists at the U.S. Department of Energy's Advanced Photon Source may give scientists a new way to control the stability of some colloidal suspensions, a process that could open pathways to new materials.
A Fruit-Fly Protein that Captures Tumor Growth Factors
MAY 30, 2008
Researchers using the Argonne Advanced Photon Source have shown how Argos, a fruit fly protein, acts as a “decoy” receptor, binding growth factors that promote the progression of cancer, information that may lead to new drug designs.
An X-ray Vortex on the Horizon?
MAY 5, 2008
Argonne physicists have shown theoretically that the harmonics of the x-ray radiation from a helical undulator have the twisted-phase front and singular core characteristic of an optical vortex, a tornado-like state of light that carries orbital angular momentum. An "x-ray vortex" beam has the capability to make tiny particles swirl in its field and may be useful for the exploration of previously inaccessible quadrupole and other electronic transitions. Until now, production of x-ray vortices has required inefficient optics that must be tuned to the x-ray beam energy.
A Protein that Repairs Damage to Cancer Cells
MAY 5, 2008
University of Chicago scientists using two x-ray beamlines at the Argonne Advanced Photon Source have shown how a protein detects and repairs damage in human cells; the study raises the possibility of designing a molecule that could interfere with the repair process, making a certain type of cancer treatment more effective.
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Featured News
A Vote of Thanks!
JULY 7, 2008
Supplemental funding from U.S. Congress protects APS jobs and allows return to normal operating hours
Run 2008-02 extended by five days
Run 2008-03 returned to normal hours
Thanks to very effective advocacy by Advanced Photon Source (APS) users, and the support of the U.S. Congress, the APS has received an injection of funds that will enable the facility to function normally, at least until it receives a 2009 federal budget, expected next spring.
Beam and Ring Status
