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Watch the most powerful x-ray laser zap droplets of water
Scientists at Stanford University's SLAC National Accelerator Laboratory wanted to better understand explosions caused by x-rays, and we got a cool short movie out of their efforts. They filmed droplets and jets of water being vaporized by the lab's Linac Coherent Light Source (LCLS) -- the most powerful x-ray laser in the world. Claudiu Stan, one of those scientists, explained that "understanding the dynamics of these explosions will allow [them] to avoid their unwanted effects on samples." On the other hand, the data they gathered could also lead to new ways of using those explosions to trigger changes in their samples.
Crazy fast X-ray laser catches chemical reactions in the act
Scientists at the Department of Energy's SLAC laboratory have taken a "molecular movie" of a chemical reaction for the first time. The results of their research could give new insights into to how chemical bonds form, helping researchers better understand biological processes. To give you an idea of the difficulty of the feat, the critical part of the reaction -- the breaking apart of a ring-shaped gas molecule -- takes a mere 200 femtoseconds (quadrillionths of a second). To record such a rapid process, the researchers used the two mile long Linac Coherent Light Source (LCLS) to fire X-ray laser pulses a mere 25 quadrillionths of a second in duration.
Diamond hones DOE X-ray laser howitzer to razor-sharp precision
The US Department of Energy's SLAC accelerator lab already has a pretty useful X-ray laser -- the Linac Coherent Light Source (LCLS). But, recent modifications to the device have scientists drooling over its new found potential. Using a thin wafer of diamond, the Stanford-run lab filtered the beam to a lone frequency, then amplified it in a process called "self-seeding." That's given the world's most powerful X-ray laser even more punch by tossing out unneeded wavelengths which were reducing its intensity. The tweaks allow scientists across many fields to finesse and image matter at the atomic level, giving them more power to study and change it. According to the lab, researchers who came to observe the experiment from other X-ray laser facilities "were grinning from ear to ear" at the possibility of integrating the tech into their own labs. The SLAC team claims they could still add 10 times more punch to the LCLS with further optimization, putting the laser in a class by itself -- X-ray-wise, anyway.
X-ray laser bakes solid plasma from aluminum foil, brings us closer to nuclear fusion
Nuclear fusion, like flying cars, is one of those transparent, dangling carrots that've been stymying the scientific community and tickling our collective noses for decades. But recent research out of the Department of Energy's SLAC National Accelerator Laboratory might help us inch a few baby steps closer to that Jetsonian future. The experiment, conducted by a group of Oxford University scientists, utilized the DOE's Linac Coherent Light Source -- an X-ray laser capable of pulsing "more than a billion times brighter" than current synchrotron sources -- to transmute a piece of aluminum foil heated to 3.6 million degrees Fahrenheit (or 2 million degrees Celsius) into a cube of solid plasma. So, why go to such lengths to fry a tiny piece of metal at that extreme temperature? Simple: to replicate conditions found within stars and planets. Alright, so it's not that easy and we're still a ways off from actually duping celestial bodies, but the findings could help advance theories in the field and eventually unlock the powers of the Sun. Until that fateful day arrives, however, we'll just have to let these pedigreed pyros continue to play with their high-tech toys.
