Lensless X-ray nanotechnique is developed
Published: Feb. 25, 2008 at 9:33 AM
ARGONNE, Ill., Feb. 25 (UPI) -- A U.S.-led team of scientists has developed a lensless X-ray technique that can record images of extremely tiny structures in nanoparticles and nanomaterials.
Researchers at the U.S. Department of Energy's Argonne National Laboratory -- working with scientists from the University of California-Los Angeles, the University of Melbourne, La Trobe University in Melbourne and the Australian Synchrotron -- developed a way to examine internal and buried structures in micrometer-sized samples on the scale of nanometers. The scientists said the development might contribute to the understanding of disease and its eradication, healing after injury, cancer and cell death.
X-ray resolution has traditionally been limited by lens technology, said Ian McNulty, the lead Argonne author of the study. "The new lensless technique avoids that limitation by using sophisticated algorithms to reconstruct the image," he said.
He said the technique can be extended beyond the current resolution of about 20 nanometers to image the internal structure of micrometer-sized samples at finer resolution, reaching deep into the nanometer scale.
The development of the new technique is reported in the journal Physical Review Letters.
Researchers at the U.S. Department of Energy's Argonne National Laboratory -- working with scientists from the University of California-Los Angeles, the University of Melbourne, La Trobe University in Melbourne and the Australian Synchrotron -- developed a way to examine internal and buried structures in micrometer-sized samples on the scale of nanometers. The scientists said the development might contribute to the understanding of disease and its eradication, healing after injury, cancer and cell death.
X-ray resolution has traditionally been limited by lens technology, said Ian McNulty, the lead Argonne author of the study. "The new lensless technique avoids that limitation by using sophisticated algorithms to reconstruct the image," he said.
He said the technique can be extended beyond the current resolution of about 20 nanometers to image the internal structure of micrometer-sized samples at finer resolution, reaching deep into the nanometer scale.
The development of the new technique is reported in the journal Physical Review Letters.
© 2008 United Press International. All Rights Reserved.
This material may not be reproduced, redistributed, or manipulated in any form.
This material may not be reproduced, redistributed, or manipulated in any form.
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In this image from NASA's Atmospheric Infrared Sounder instrument on NASA's Aqua spacecraft, Cyclone Nargis is pictured when it was a Category one hurricane located 370 miles west of Yangon, Myanmar on May 1, 2008. Tropical Cyclone Nargis flooded the region on May 4, 2008. The death toll from the cyclone and its aftermath is feared to hit or exceed 100,000 lives. (UPI Photo/NASA/MODIS Rapid Response Team)
NASA satellite images show Tropical Cyclone Nargis in Myanmar
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