Vicariously Tour the National Ignition Facility
Dave Bullock writes "The National Ignition Facility (NIF) has been discussed several times over the years on Slashdot and just recently fired all of its 192 lasers. LLNL scientists predict NIF will attain ignition (controlled nuclear explosion) in 2010. For now, take a look at the photos I shot of NIF for Wired.com when I toured it earlier this year."
Geez, how much does it take to keep all those sharks fed?
That's a long time to be chargin thah lazers
"I bless every day that I continue to live, for every day is pure profit."
Because it's controlled.
Throughout the entire NIF facility, emergency shutdown panels listing the status of the laser (using both text and light) provide a level of safety for the hapless scientist or technician who happens to be in the wrong place at the wrong time before a firing of the lasers.
Well, I think I speak for everyone here when I say that it was thoughtful of them to provide a warning light before they turn it on... ;-)
I also hope they have a webcam, especially in that room with the giant tubes (lasers). When the portal storm finally starts I'd like to see those cool lasers ripping through walls, headcrabs, and hapless scientists before I'm turned into a zombie myself ;-)
... was to have missiles with frickin lasers attached to their warheads.
Here's a link to a wikipedia section explaining what the summary means by "controlled nuclear explosion".
You know the economy is bad when even lasers are losing their jobs..
*Ba-dum-cha*
It is more likely to produce a black hole in a bank account.
A short video brought to you from those caring folks at Wired http://www.wired.com/wiredscience/2008/10/video-podcast-6/
I used to work at LLNL on another project, but I'll give it my best shot from what I understood of NIF. I toured it once myself, if that means anything...
In a nuclear bomb, say, they would have several kilograms of nuclear fuel, and the catalyst for the reaction is usually another bomb of some kind. Very uncontrolled, just trying to make a big "boom". In this experiment, they are using very very tiny amounts of deuterium and tritium, and the catalyst is 192 lasers firing simultaneously. The energy output will have a very real ceiling that is theoretically well below what is needed to blow up the whole lab. (Still, it's probably bad to be in the room when it goes off...)
Their goal is actually to get as much energy out of this explosion as is possible, so if the lab did blow up, it would probably ironically be something of a success... Their real goal is to simply get more energy out than they inject via lasers in a controlled fashion. That would be a proof of concept for workable fusion powered reactors.
Note, this is NOT a power plant, and my comments should not be misconstrued to say "Hey, them there's a fusion power plant". We're still a long long way from that. Kay, thanks.
The process starts with a single laser diode. The output of that is split and amplified to make the 192 beams. Pretty amazing when you think about it.
"To those who are overly cautious, everything is impossible. "
That frightens me.
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I've always wondered what a place like that sounds like at the moment it goes off. Is everything so insulated you don't hear a thing? Or does everything shudder like when someone's blasting at a quarry a few miles away?
Not that this wasn't entirely predictable.