Tagged Questions
1
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1answer
67 views
What is the lowest possible theoretical temperature that nuclear fusion can occur at?
I am not talking about the pseudo-science of so called cold fusion I am interested in what temperature you can get away with to produce fusion reaction. I was thinking in terms of micro-fusion or at ...
3
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0answers
30 views
What is the difference between the KDEMO and DEMO projects?
I'm writing a paper on the future of fusion technology and I can't seem to find the difference between Europe's DEMO experiment and Korea's KDEMO except for the fact that they are both planned to ...
-2
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1answer
83 views
What do we do with the byproducts of Nuclear Fusion? [closed]
http://wiki.answers.com/Q/What_are_the_byproducts_of_nuclear_fusion
So I quickly googled the byproducts of fusion and got the above link.
It looks to me that you'll be left with He atoms. So what ...
2
votes
1answer
130 views
Is man-made Carbon Fusion possible?
In a type Ia Supernova, the carbon accumulated in the earlier stages of a stars death fissues to create even heavier elements. Could this be used by humans aswell? Is it theoretically possible to ...
7
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3answers
787 views
Nuclear fusion: what causes this “resonance” peak?
Can anyone explain why the $^{11}\mathrm{B}\mathrm{H}$ fusion cross-section has a peak near 150 keV, and why $\mathrm{D}\mathrm{D}$ and $\mathrm{D}\mathrm{T}$ have no such sharp peaks?
1
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1answer
104 views
Is there a good summary of all nuclear fusion approaches?
I am pretty sure, that during last 60 years of well-funded research a lot of ideas on nuclear fusion were already tried and ruled out.
Is there some summary describing all of them and why they ...
1
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1answer
181 views
Complete list of nuclear fusion reactions
Could anyone suggest good source of all fusion reactions and their cross section vs energy graphs, including ones which were ruled out for nuclear fusion reactors (i.e. including endothermic and ...
7
votes
3answers
342 views
Nuclear fusion : ion vs atom fusion cross section?
I've read critique on ITER project (in Russian), and one of points was that cross section of ion-ion fusion is much lower than ion-atom and atom-atom, and that's the reason why it likely to not work.
...
2
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1answer
245 views
“Dynamic Albedo of Neutrons” and all these Farnsworth fusors
I've checked specs of Russian "Dynamic Albedo of Neutrons" module on Mars MSL rover - it can do 10^8 neutron pulses at 10 pulses per second. It works on D-T reaction in tiny linear accelerator, and ...
4
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0answers
181 views
Is there a sound theoretical argument against inner-shell induced nuclear chain reactions?
There is a claim often made about cold fusion, that it is excluded theoretically. The main theoretical argument is that electronic energies are too low to overcome the Coulomb barrier, since d-d ...
4
votes
1answer
942 views
How to explain $E=mc^2$ mass defect in fission/fusion
What is the nature of nuclear energy? This is closely related to the correct explanation of mass defect.
I did some research of that topic and cannot come to a single comprehensive and consistent ...
1
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0answers
81 views
Helium Fusion and the Origin of Elements
In the fifth of his Messenger Lectures Feynman mentions the fact that Carbon-12 has an energy level at 7.82 MeV. He then states that this is what enables the fusion of three Helium-4 ions into Carbon ...
1
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1answer
130 views
Why does a coulomb explosion induce fusion?
If you strip the valence electrons apart with a very short intense electromagnetic field the remaining core explodes in a so called coulomb explosion.
But experiments have shown that under certain ...
2
votes
1answer
163 views
How does the internuclear repulsion vary in Hydrogenic atom collision?
Hydrogen fusion requires two hydrogen nuclei to get close enough (typically a few fm) to fuse. Much of the problem of creating a fusion reactor is overcoming the Coulomb repulsion between a pair of ...
5
votes
2answers
243 views
What elements can be created in the fusion process of different types of suns?
As I understand it fusion inside a sun can produce heavier and heavier elements until some sort of "nucleus size limit" is reached. As far as I understand, the limit is thought to be reached with the ...
12
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2answers
234 views
Hydrogen as a fuel in Sun
The source of Sun's incessant energy is hydrogen; which is continuously converting to helium through nuclear fusion reaction releasing energy. Why does not all hydrogen convert into helium in one big ...
4
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2answers
732 views
How often does nuclear fusion occur within the human body?
I'm just curious. I figure atoms fuse occasionally just by chance, like quantum tunneling or rogue waves. Is this true? If so, any idea how often?
4
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2answers
655 views
Origin of elements heavier than Iron (Fe)
In all the discussions about how the heavy elements in the universe are forged in the guts of stars and especially during a stars death, I usually hear that once the star begins fusing lighter atoms ...
2
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1answer
416 views
How much energy can be extracted from hydrogen?
http://en.wikipedia.org/wiki/B-L says that the difference between baryon number and lepton number is conserved. Ordinary hydrogen has one of each, but turning it into helium releases only the binding ...
