nuclear fusion
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JET nuclear fusion reactor shatters record for energy production
The Joint European Torus (JET) fusion reactor near Oxford in the UK has produced the highest level of sustained energy ever from atom fusion.
Visualized: Sandia National Laboratories' Z machine erupts in a web of lightning
Sandia National Laboratories' Z machine sounds like it belongs in a James Bond movie more than it does an Alberquerque research facility. Based on what it can do, that's not as far-fetched as it seems. What you see isn't the handiwork of some electric spider -- it's what you witness in the immediate fraction of a second after the Z's electromagnetic pulse kicks in and forks of lightning burst across the 108-foot distance inside. The pulse in question is key to Sandia's studies of fusion and the effect of very intense magnetic pressures on materials that normally refuse to change states. Even in 2006, the Z was putting out pressure more than 10 million times that of the atmosphere, and it successfully melted diamond at roughly half that strength. It goes without saying that we don't want to be anywhere near this kind of energy when scientists flick the switch, but we're glad to see that something so pretty and deadly can help us understand physics. [Image credit: Randy Montoya, Sandia National Laboratories]
NIF sets record with 500 TW laser shot, lab-based nuclear fusion not far behind
In an effort to recreate the fusion reaction that occurs in start formation, the National Ignition Facility in Livermore, CA has been building up to some extremely powerful laser shots. Back in March, researchers fired off 411 terawatts, and we know that kind of power doesn't come cheap. NIF's latest test shot, fired July 5th, set a new record with 192 lasers producing more than 500 trillion watts of peak power and 1.85 MJ of ultraviolet laser light. Mind you, that's more than a thousand times more energy than the United States uses at any given moment, not to mention a hundred times more power than other lasers can fire consistently. More record-setting shots are sure to come, and in addition to enabling research on harnessing nuclear fusion, NIF's mega-lasers are helping inform the design of new laser facilities being built in China, Japan, Russia, France and the UK.
Sandia National Laboratories generates neutrons in a radical way
The Responsive Neutron Generator Product Deployment Center (say that quickly five times) at Sandia Labs in Albuquerque, NM has discovered a way to take the conventional cylindrical tubes out of the equation and introduce a more computer-chip like, mass-produced neutron source on an astonishingly smaller scale. For those seeking lay terms, we're hearing that possible practical applications include implantation close to tumors in cancer patients to minimize time in the hospital for treatment, and sensors for contraband. Sandia Labs' technical staff has created what it calls a "neutristor," which produces one neutron per transistor, a concept that was directly inspired by the two transistors per bit on microchips. The team is currently seeking funding to ensure future viability, and well, to pay for stuff. Check out the video after the break, as well as further information at the source.
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.
Microsoft manager teams up with teens to build a fusion reactor in his garage (video)
Normally, if a grown man talks about building a fusion reactor and wants your 13-year-old to hang out in his garage, we'd expect you to smile, back away slowly, and perhaps alert the authorities. But, if that man is Microsoft program manager Carl Greninger there's no need to run. The science fanatic recruited a team of teens, as young as 13, and worked with them to build a Farnsworth–Hirsch Fusor -- a (comparatively) simple nuclear reactor that smashes together atoms and produces neutrons. Check out the nearly 20-min video after the break to watch a bunch of high school kids generate ball of ionized plasma. And to think, all that's in your garage is that '65 Mustang you swear you're gonna restore one day.
Nuclear fusion startup gets Jeff Bezos backing, won't be dropping any bombs
Here's a phrase we never though we'd utter: Bezos is the bomb! Okay, so maybe a nuke reference isn't exactly appropriate here, considering Jeff Bezos is actually backing a company that's looking to create cheap energy through nuclear fusion, but we couldn't resist. General Fusion, a nuclear fusion startup, released a statement today saying that it has completed a $19.5 million round of funding that included backing by the Amazon founder's Bezos Expeditions. According the company's website, General Fusion's approach to generating "safe and plentiful" energy employs a concept created about 30 years ago called "magnetic target fusion," and expects commercialization of its process could come before the end of the decade. Full PR after the break.
Visualized: inside the National Ignition Facility
The $3.5 billion National Ignition Facility may not have yet reached its "ignition" goal -- essentially, fusing the nuclei of hydrogen atoms and generating more energy than was required to start the initial reaction -- but it did recently complete its first integrated ignition experiment on September 29th, in which a capsule containing hydrogen fuel was briefly bombarded with 1 megajoule of energy from the 192 lasers in the test chamber. Impressive, to be sure, and a prime opportunity to take a look at just how impressive the facility itself is. Check out a few more jaw-dropping shots in the gallery below, and hit up the link below for The Big Picture's own retrospective. %Gallery-104648%
One megajoule laser brings nuclear fusion power closer to reality
When you think of the laser these days, you're most likely imagining a giant beam that can scorch a few buildings within seconds. Putting your evil thoughts aside, why not think smaller yet more powerful, and something that may change the future of mankind for good? We're talking about the National Ignition Facility that has recently produced the world's first megajoule laser, which only lasted for a few nanoseconds but is still a milestone for nuclear fusion development (read: clean energy on a massive scale). In a nutshell, this laser should be able to produce sufficient X-rays in order to fuse hydrogen nuclei, and it also has financial and efficiency advantage over other systems by having an exposed reactor core instead of one shielded by a huge magnet. That said, until the NIF tries the laser on fuel capsules this summer, we can only be hopeful. [Original photo from 2funnycats]
Transparent aluminum! Would that be worth somethin' to ya, eh?
It's hard to say if boffins at Oxford University got their inspiration from Nimoy and Co., but one thing's for sure: they aren't joking about the creation of transparent aluminum. In what can only be described as a breakthrough for the ages, a team of mad scientists across the way have created "a completely new state of matter nobody has seen before" by blasting aluminum walls (around one-inch thick) with brief pulses of soft X-ray light, each of which is "more powerful than the output of a power plant that provides electricity to a whole city." For approximately 40 femtoseconds, an "invisible effect" is seen, giving the gurus hope that their experiment could lead to new studies in exotic states of matter. For a taste of exactly what we mean, feel free to voice command your PC to jump past the break. Or use the keyboard, if you're feeling quaint.
NIF scientists set the controls for nuclear fusion
It looks like nuclear fusion is no longer just for precocious teenagers. Among the flurry of experiments going down worldwide, significant work will start rolling at the US National Ignition Facility sometime this June. Under construction for twelve years, the lab will focus 192 giant laser beams on two forms of hydrogen, deuterium and tritium. Combining these isotopes at high temperatures generates a colossal amount of energy, recreating conditions "at the heart of the sun." The goal is to find a way to achieve controlled, sustained nuclear fusion and energy gain in a lab. According to the director of the facility, Dr. Ed Moses, "When all NIF lasers are fired at full energy, they will deliver 1.8 megajoules of ultraviolet energy to the target." Lasting just a few nanoseconds, the system is capable of generation 500 trillion watts of power -- more than the peak electrical generating power of the entire United States. Significant results are expected sometime between 2010 and 2012.
Detroit-area teen builds nuclear fusion reactor
We've heard of plenty of DIY projects, ranging from an MP3 player to a Wacom tablet, but a kid building a small nuclear fusion device in his parents' basement? That's something special. Thiago Olson, a 17-year-old from Oakland Township, outside Detroit, has just completed a 1,000-hour (that's over 40 days worth, but he spread it out over two years) project to build a small-scale nuclear fusion reactor. How does it work? The short of it is that Olson takes a vacuum chamber, fills it with deuterium gas and then jolts it up with 40,000 volts, which creates a very small amount of nuclear fusion. That sounds easy enough -- but now the question is, can young Dr. Strangelove hook up his reactor to the house so he can pay his parents' electrical bill? [Via MAKE: Blog, photo courtesy Detroit Free Press]
