Science & Environment
X-ray free-electron laser sets new record for shortest high-energy pulses
Source: Phys.org - latest science and technology news stories · Published
Researchers at the Linac Coherent Light Source (LCLS) at the U.S. Department of Energy's SLAC National Accelerator Laboratory have measured the shortest high-energy X-ray pulses ever recorded at an X-ray free-electron laser (XFEL). The pulses had photon energies of about 9 kiloel
Researchers at the Linac Coherent Light Source (LCLS) at the U.S. Department of Energy's SLAC National Accelerator Laboratory have measured the shortest high-energy X-ray pulses ever recorded at an X-ray free-electron laser (XFEL). The pulses had photon energies of about 9 kiloelectronvolts (keV) and clocked in at durations of 100 to 400 attoseconds—mere billionths of a billionth of a second.
The results are published in Nature Photonics.
Related stories
Butterfly navigation tests reveal that migrating species may rely on different natural compasses
Researchers at Keele University have discovered that migratory butterflies may use different navigation systems to find their way during migrations, highlighting the importance of understanding how different species may respond to environmental changes.
Phys.org - latest science and technology news stories ·
Forensic specialists need only one or two facial features to identify individuals
Researchers led by Carina Hahn at the National Institute of Standards and Technology (NIST), U.S., have found that forensic specialists in facial identification need only one or two features, such as eyes or ears, to identify a face when looking for a match. Published in PLOS One
Phys.org - latest science and technology news stories ·
Astronauts’ hearts just passed a surprising test for Mars
A new study tracking 13 astronauts suggests that the human heart may be surprisingly well equipped for a journey to Mars, especially with regular exercise during spaceflight. Researchers found that astronauts' hearts adapted to months of weightlessness and handled simulated Marti
All Top News -- ScienceDaily ·
Hurricane warning maps are improving, but a dangerous problem remains
A new study reveals that improved hurricane forecast graphics may help people identify threatened areas without making them more likely to recognize the danger or take protective action. Researchers also found that a widespread misunderstanding of the hurricane cone persists, hig
All Top News -- ScienceDaily ·
Astronomers discover a ghostly green star unlike any known before
Astronomers have uncovered a surprising rainbow of dead stars, including the first known star that would appear genuinely green to human eyes. Researchers found that white dwarfs can glow in unexpected shades of pink, purple, yellow, and cyan because of unusual chemical interacti
All Top News -- ScienceDaily ·