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Nuclear fusion project takes key step in lab test
AP Science ^ | February 12, 2014 | MALCOLM RITTER

Posted on 02/12/2014 12:55:31 PM PST by BenLurkin

In each trial, 192 laser beams briefly fired into a half-inch-long gold cylinder. The cylinder held a tiny ball that contained the fuel, which was a mix of two kinds of hydrogen, called deuterium and tritium. The energy from the lasers kicked off a process that compressed the ball by an amount akin to squeezing a basketball down to the size of a pea, said Debbie Callahan, an author of the paper.

That created the extremely high pressure and temperatures needed to get the hydrogen atoms to fuse. It was all over in the blink of an eye, with the reaction confined to a space smaller than the width of a human hair.

Nuclear fusion would be worthwhile only if it produces more energy than it uses, and the results were far from that. The hydrogen fuel did emit more energy than it absorbed from the lasers, an experimental goal. But the fuel took in only about 1 percent of all the energy produced by the lasers. So the apparatus is still far short of producing more energy than it requires to operate.

Another key finding was evidence that energy created by the fusion reaction was going back into the remaining fuel, a "bootstrapping" process that is key to boosting the energy output.

...

The sign of bootstrapping is "really a wonderful result," said fusion expert Robert McCrory of the University of Rochester, who was not involved in the research. "There's a lot more that needs to be done" to reach the point where the reaction produces more energy than the lasers deliver, but "this was absolutely necessary."

(Excerpt) Read more at sfgate.com ...


TOPICS: Science
KEYWORDS: fusion; key; nuclear; nuclearfusion; project; step; test

This undated image provided by the Lawrence Livermore National Laboratory shows a deuterium and tritium capsule, sphere in window at center, inside a cylindrical hohlraum container about 0.4 inches tall. In research reported Wednesday, Feb. 12, 2014 by the journal Nature, scientists say they've taken a key step toward harnessing nuclear fusion as a new way to generate power, an idea that has been pursued for decades. In tests, 192 laser beams briefly fired into the small gold cylinder which held the two kinds of hydrogen. The energy from the lasers kicked off a process that compressed the ball by an amount akin to squeezing a basketball down to the size of a pea, said Debbie Callahan, an author of the paper. That created the extremely high pressure and temperatures needed to get the hydrogen atoms to fuse. Photo: Eddie Dewald, AP
1 posted on 02/12/2014 12:55:31 PM PST by BenLurkin
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To: BenLurkin

This is really interesting and its real. Granted its not going to lead to fusion reactors tomorrow but its progress.


2 posted on 02/12/2014 12:57:51 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: BenLurkin

The story I just read.

Nuclear fusion hits energy milestone

http://www.cbc.ca/news/technology/nuclear-fusion-hits-energy-milestone-1.2534140


3 posted on 02/12/2014 1:01:19 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: BenLurkin

Better work is being done at Sandia.


4 posted on 02/12/2014 1:06:08 PM PST by Banjoguy (The Mayor of San Antonio is the smoothest liar I have ever seen.)
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To: BenLurkin

“Fusion power would avoid the need for long-term storage of radioactive waste. And unlike fossil fuels like coal, it would not produce greenhouse gases that cause global warming.”

BUT!

It DOES PRODUCE ENERGY, which is what the envirowhackos and the Population Control crowd REALLY HATE.

The “pollution” and “warming” memes are just scare tactics, to hide their true agenda.


5 posted on 02/12/2014 1:08:09 PM PST by G Larry
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To: BenLurkin

Don’t buy it...kind of like windmills...you need grease (and lots of it) to lubricate the bearings. How much will it cost to create viable fusion reactors and maintain them? Likely more that it’s worth.


6 posted on 02/12/2014 1:08:16 PM PST by gr8eman (Neptune, Titan, stars don't frighten!)
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To: cripplecreek

I’ll start getting excited once they do this without using tritium.
Most of the yield comes from D + T reaction -> 17MeV
D + D requires much higher temps and reaction -> 4Mev

Tritium requires neutron irradiation to create before fusion reaction.

D + D works with sea water extraction but yield is much lower.


7 posted on 02/12/2014 1:09:03 PM PST by Zathras
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To: gr8eman

And...oh yeah...the envirowhackjobs will be trying to shut it down at every turn!


8 posted on 02/12/2014 1:09:17 PM PST by gr8eman (Neptune, Titan, stars don't frighten!)
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To: cripplecreek

Any way we could scale that sucker up a bit and put Boehner in there?


9 posted on 02/12/2014 1:11:10 PM PST by Da Coyote
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To: Da Coyote

He’s already many times denser than the center of the sun.


10 posted on 02/12/2014 1:12:21 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: Banjoguy

The Z-Machine is kind of cool!
A Fusion pulse generator would work if they could get pulse cycles short enough.


11 posted on 02/12/2014 1:12:52 PM PST by Zathras
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To: Zathras

True enough but its a step forward.


12 posted on 02/12/2014 1:13:23 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: cripplecreek

“He’s already many times denser than the center of the sun.”

Heh!


13 posted on 02/12/2014 1:14:05 PM PST by Da Coyote
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To: BenLurkin

No big deal. Kevmo has an order in for his home cold fusion reactor to be delivered early this year.


14 posted on 02/12/2014 1:15:46 PM PST by TexasGator
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To: cripplecreek

Oh I agree, Fusion is the future.
Its just REALLY hard to keep running.


15 posted on 02/12/2014 1:18:05 PM PST by Zathras
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To: Zathras

Nature creates fusion reactors in abundance but nature has an abundance of material to work with.


16 posted on 02/12/2014 1:23:23 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: Kevmo

Ping.


17 posted on 02/12/2014 1:32:00 PM PST by Steely Tom (How do you feel about robbing Peter's robot?)
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To: cripplecreek
Fusion reactors that no doubt liberals will try to ban with protests and "No fusion" concerts no matter how safe and clean it is.

"Well the man tried to tell me...that fusion was safe...but the big corporations laid the working man to waste.."

18 posted on 02/12/2014 1:37:27 PM PST by GrandJediMasterYoda (Hitlery: Incarnation of evil.)
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To: GrandJediMasterYoda

Big fusion causes global warming!


19 posted on 02/12/2014 1:42:10 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: cripplecreek

We need big Ice Cream.


20 posted on 02/12/2014 1:49:26 PM PST by bmwcyle (People who do not study history are destine to believe really ignorant statements.)
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To: BenLurkin

They forgot to tell you that these laser fusion reactions give off millions+++ and bizillions of soft neutrons which are good for killing enemy tankers but leaving the tank unharmed.


21 posted on 02/12/2014 1:55:09 PM PST by bunkerhill7 ("The Second Amendment has no limits on firepower"-NY State Senator Kathleen A. Marchione.")
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To: BenLurkin

hundreds of $billions spent on the controlled hot fusion (CHF) scam, and basically nothing to show for it. If we had spent 2% of that on cold fusion, we’d have had nuke cars for at least a decade.

-—————————www.mail-archive.com/vortex-l@eskimo.com/msg85822.html———————


22 posted on 02/12/2014 2:52:28 PM PST by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
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To: BenLurkin

And many, many years after that, TexasGator will develop some manners.
There is no doubt that solving the fusion problem will be much easier than that.


23 posted on 02/12/2014 2:56:40 PM PST by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
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To: Zathras
Actually I spoke to soon. My understanding now is that this is a break through result by team Hurricane, et al, i.e. although ignition was not obtained more energy was generated than was used in fusion fuel.

http://www.nbcnews.com/science/science-news/laser-fusion-project-takes-one-small-step-toward-energy-leap-n27796

24 posted on 02/12/2014 3:15:02 PM PST by Banjoguy (The Mayor of San Antonio is the smoothest liar I have ever seen.)
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To: BenLurkin

Didn’t Sen. Fienstien cut funding to LLNL last year? I’ve heard over 300 engineers/mechanical designer jobs were cut or about to be.


25 posted on 02/12/2014 3:26:04 PM PST by muleskinner
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