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Nuclear Fusion News and Discussions

fusion nuclear fusion energy physics material science fusion power nuclear power ITER cold fusion tokamak

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#21
Bradley

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Risk offsetting is not something you do at that level without at least 99% confidence.... If this turns out to be bogus it could do a lot of damage to the company.

 

Probably wouldn't damage the company. Their revenue source is not fusion, especially a promise of fusion that is a decade out. 



#22
Yuli Ban

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China’s “Artificial Sun” Manages To Stay On For A Minute

China has been able to successfully obtain high-confinement nuclear reactor plasma for a whole minute, which experts believe will promote the development of international thermonuclear fusion research. The reactor was able to maintain a temperature of 50 million Kelvins, that’s three times as hot as Sun’s core.
For those unfamiliar, Chinese scientists in February this year had made a nuclear reactor plasma that reached a temperature of 50 million Kelvins (or, 49.999 million degrees Celsius) – or thrice as hot as the sun’s 15 million Kelvins core.
The entire experiment was conducted using the nuclear reactor known as the Experimental Advanced Superconducting Tokamak (EAST) – an experimental thermonuclear fusion reactor that replicates the energy-generating process of the sun – which is stationed at the Institute of Plasma Physics at the Chinese Academy of Sciences in Jiangsu province.
 
According to the statement issued on the institute’s website on Wednesday, the temperature was “roughly the same as the mid-sized thermonuclear explosion”.


I'm posting these stories outside their respective threads just to help get this damn forum back on track.


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#23
Sciencerocks

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I am glad China is pushing these break through. Humanity will have to depend on them for most of our main advancements for the next 4 years.

 

History is full of one civilization falling, but most of the time outside of the dark ages there were nearly always another in some other part of the world doing great things.

 

China probably will have fusion in the next 10 years but I wouldn't hold out any hope for us.


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#24
EVanimations

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China probably will have fusion in the next 10 years but I wouldn't hold out any hope for us.

 

70's: fusion is 10 years away!

80's: fusion is 10 years away!

90's: fusion is 10 years away!

00's: fusion is 10 years away!

10's: fusion is 10 years away?

 

I know this isn't an original observation but curbing our excitement will be good. Hope we can break this pattern.


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#25
Yuli Ban

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Must I post this damning infographic again?

3vYLQmm.png


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#26
Guyverman1990

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Next they will likely be able to produce another "Artificial Sun" that can last for two minutes.



#27
Recyvuym

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I loudly predicted the second wave of the Global Financial Crisis would begin by the 31st of March 2017. But I was wrong! Observe my well-deserved public humiliation here, here and here. Let this be a warning to all of you who try to guess the future. Yes, that means you, reading this now! Put that prediction back in your pocket! Do it now, before it's too late! (Also check out my userpage, it's even funnier.)


#28
Yuli Ban

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By the way, the Wendelstein-7X is set to receive $2 billion.


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#29
Yuli Ban

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This thread's not for discussing nuclear fission— not unless it's a fission-fusion hybrid plant. This is purely dedicated to displaying research and development of nuclear fusion.
In the same manner as how the Psychotronics News and Discussions thread was a spin-off directly linked to the Transhumanism thread, this one is directly linked to the Energy and Environment News and Discussions thread.
 
The reason why I'm separating the topics is because I feel the progression of nuclear fusion technology is indeed important enough to warrant its own topic, and it can also act as a more refined library of news for the field. It's not just energy and environment, after all— it's also closely related to physics, material science, and AI.
 
ITER-Nuclear-Fusion.jpg


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#30
Sciencerocks

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UK Tokomak Energy startup has a test fusion reactor running
brian wang | April 28, 2017 |
 

The UK’s newest fusion reactor has been turned on for the first time and has officially achieved first plasma. The reactor aims to produce a record-breaking plasma temperature of 100 million degrees for a privately-funded venture. This is seven times hotter than the centre of the Sun and the temperature necessary for controlled fusion.

Oxford, England-based Tokamak Energy said today that with its ST40 reactor “up and running”, the next steps are to complete the commissioning and installation of the full set of magnetic coils which are crucial to reaching the temperatures required for fusion. This will allow the ST40 to produce a plasma temperature of 15 million degrees – as hot as the center of the Sun – in the autumn of this year.

Tokamak Energy grew out of Culham Laboratory, home to JET – the world’s most powerful tokamak – and the world’s leading centre for magnetic fusion energy research. Tokamak Energy’s technology revolves around high temperature superconducting (HTS) magnets, which allow for relatively low-power and small-size devices, but high performance and potentially widespread commercial deployment.

 

http://www.nextbigfu...or-running.html


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#31
Sciencerocks

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Lockheed compact fusion reactor design about 100 times larger than first plans
brian wang | May 1, 2017 |
 

There is updated technical information on the Lockheed compact fusion reactor project. It was originally believed that the compact reactor would fit on a large truck. It looked like it might weigh 20 tons. After more engineering and scientific research, the new design requires about 2000 ton reactor that is 7 meters in diameter and 18 meters long. This would be about one third the length of a Dolphin diesel submarine and it would be slightly wider and taller. It would be similar in size to a A5W submarine nuclear fission reactor. We would not know for sure because the A5W size is classified but based on the the size and likely configuration of a nuclear submarine this size estimate is likely.

They have performed simulations. In simulations, plasma confinement is achieved in magnetic wells with self – produced sharp magnetic field boundaries.
• Design closes for 200 MW th reactor, 18 meters long by 7 meters diameter device assuming hybrid gyro – radii sheath and cusp widths and good coil support magnetic shielding.
• Neutral beam heats plasma to ignited state.
• The dominant losses are ion losses through the ring cusps into stalks and axially through the mirror confined sheath.

 

http://www.nextbigfu...irst-plans.html


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#32
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A “World First” Fusion Reactor Just Created Its First Plasma
Getty
In Brief

    Tokamak Energy's fusion reactor has achieved first plasma and is on track to produce temperatures of 100 million degrees Celsius (180 million degrees Fahrenheit) by 2018.
    Tokamak Energy CEO says to expect fusion energy "in years, not decades.”

Achieving First Plasma

After being turned on for the first time, the UK’s newest fusion reactor has achieved first plasma. This simply means that the reactor was able to successfully generate a molten mass of electrically-charged gas — plasma — inside its core.

Called the ST40, the reactor was constructed by Tokamak Energy, one of the leading private fusion energy companies in the world. The company was founded in 2009 with the express purpose of designing and developing small fusion reactors to introduce fusion power into the grid by 2030.

 

https://futurism.com...s-first-plasma/


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#33
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    Tokamak Energy CEO says to expect fusion energy "in years, not decades.”

 

Imagine how funny it would be if we'd still cling to the coal lobby by then.



#34
BarkEater93

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A “World First” Fusion Reactor Just Created Its First Plasma
Getty
In Brief

    Tokamak Energy's fusion reactor has achieved first plasma and is on track to produce temperatures of 100 million degrees Celsius (180 million degrees Fahrenheit) by 2018.
    Tokamak Energy CEO says to expect fusion energy "in years, not decades.”

Achieving First Plasma

After being turned on for the first time, the UK’s newest fusion reactor has achieved first plasma. This simply means that the reactor was able to successfully generate a molten mass of electrically-charged gas — plasma — inside its core.

Called the ST40, the reactor was constructed by Tokamak Energy, one of the leading private fusion energy companies in the world. The company was founded in 2009 with the express purpose of designing and developing small fusion reactors to introduce fusion power into the grid by 2030.

 

https://futurism.com...s-first-plasma/

 

Exciting. And to put that temperature in perspective, the CORE of the Sun is "only" 15 million degrees Celsius, so that's pretty damn hot!



#35
Sciencerocks

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Physicists discover that lithium oxide on tokamak walls can improve plasma performance
May 19, 2017
Physicists discover that lithium oxide on tokamak walls can improve plasma performance

PPPL physicists Robert Kaita and Michael Jaworski in front of the National Spherical Torus Experiment-Upgrade. Credit: Elle Starkman

Lithium compounds improve plasma performance in fusion devices just as well as pure lithium does, a team of physicists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) has found.

 

 

Read more at: https://phys.org/new...-walls.html#jCp


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#36
Yuli Ban

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And to put that temperature in perspective, the CORE of the Sun is "only" 15 million degrees Celsius, so that's pretty damn hot!

To be fair, the Sun also gets the benefit of being about 300,000 Earth masses and, thus, subject to extreme gravitational and electromagnetic forces. That may give it a little bit of an easier time achieving fusion.

 

 

 

 

Just a little.


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#37
Alislaws

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And to put that temperature in perspective, the CORE of the Sun is "only" 15 million degrees Celsius, so that's pretty damn hot!

To be fair, the Sun also gets the benefit of being about 300,000 Earth masses and, thus, subject to extreme gravitational and electromagnetic forces. That may give it a little bit of an easier time achieving fusion.

 

 

 

 

Just a little.

 

The sun is cheating!



#38
Ghostreaper

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If you think that's a high temperature, the required temperature for proton-boron fusion (required for aneutronic fusion where it can be used to directly produces electricity instead of just heat) is in the billions of degrees. I believe the record today for such a process is around 1.8 billion degrees.


“If the genius of invention were to reveal to-morrow the secret of immortality, of eternal beauty and youth, for which all humanity is aching, the same inexorable agents which prevent a mass from changing suddenly its velocity would likewise resist the force of the new knowledge until time gradually modifies human thought.” 

 

                                                                 Nikola Tesla - New York World, May 19th 1907 


#39
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Scientists just took a major step towards achieving nuclear fusion

"The new technique works by decelerating these runaway electrons. This is done by injecting heavy ions, such as argon or neon in the form of gas or pellets, into the reactor."

With the potential to provide almost limitless energy, free of any radioactive by-product or greenhouse gases, nuclear fusion is the goal many are aiming to achieve.

 
Creating a system to harness the power of nuclear fusion is proving difficult, however. Now, researchers think they have taken a step closer to that goal.
It takes immense pressure and temperatures of about 150 million degrees to get atoms to combine in a fusion reactor. Runaway electrons can wreak havoc in the fusion reactors currently under development and could destroy a reactor without warning.


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#40
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Researchers demonstrate first hot plasma edge in a fusion facility
July 5, 2017

Two major issues confronting magnetic-confinement fusion energy are enabling the walls of devices that house fusion reactions to survive bombardment by energetic particles, and improving confinement of the plasma required for the reactions. At the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL), researchers have found that coating tokamak walls with lithium— a light, silvery metal— can lead to progress on both fronts.

 

https://phys.org/new...n-facility.html


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Also tagged with one or more of these keywords: fusion, nuclear fusion, energy, physics, material science, fusion power, nuclear power, ITER, cold fusion, tokamak

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