
The laser, called the Linac Coherent Light Source, takes up a third of the two-mile-long linear accelerator at the SLAC National Accelerator Lab in Menlo Park, California. In the accelerator hall, tight bunches of electrons wriggle through a series of magnets and give off X-rays billions of times brighter than earlier X-ray sources could muster. The wavelength of these X-rays is comparable to the radius of a hydrogen atom — about one angstrom, or one ten-billionth of a meter — and each pulse can be as short as a few quadrillionths of a second.
“Understanding how intense light, and in particular intense X-rays, interact with both atoms and molecules is critical to understanding how we’re going to be able to image systems using these intense light pulses in the future,” said laser physicist Roger Falcone of Lawrence Berkeley National Laboratory, a member of an advisory committee for the laser’s science team but was not involved in the new studies. More>
















India suffers from chronic electricity shortages, and as the country’s voracious demand for energy continues to grow due to rising incomes and expanding industrialization and urbanization, the situation is expected to worsen. Berkeley Lab has been working with various public agencies in India to promote energy efficiency there—including greener buildings, a smarter electric grid and more efficient home appliances. Such measures will not only address the shortages but could also reduce pollution and emissions of greenhouse gases. 






























