All Questions
13
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Are there spectra that "prove" that measured energy excesses came purely from deuterium-tritium fusion reactions at the NIF during ignition events?
More energy was produced than was supplied by ultraviolet (UV) lasers (creating x-rays in the gold chamber wall to compress the spherical hollow capsule creating a dense, high-temperature, high-...
- 11
1
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0
answers
18
views
Fast neutron scattering in a neutron cloud
Will a 200 MeV neutron emitted into a neutron cloud undergo similar scattering interactions as one that is emitted into a water moderator with the resulting decreases in energy?
- 11
3
votes
1
answer
95
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Question on finding nuclear ground state spins using shell model
So I'm studying the shell model and I understand where the individual nucleon energy levels come from (Woods-Saxon plus spin-orbit interaction), but I'm stumped on how to find the ground state total ...
- 139
11
votes
2
answers
2k
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Nuclear fusion reactors and neutrons
The majority of energy produced by nuclear fusion is harnessed by neutrons or protons that split out from the product.
Given the dominant fusion method today is Deuterium + Tritium which produces He ...
- 293
2
votes
2
answers
35
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Can neutron magnetic moment be used to slightly deflect the neutrons to not hit the tocamac lattice at a really small angle?
Can neutron magnetic moment be used to slightly deflect the neutrons to not hit the tocamac lattice at a small angle? So part of the moment is spent to change its velocity vector orientation?
- 2,255
-1
votes
1
answer
517
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How much energy is released during the decay of 1 kg of neutronium?
i'm trying to find out what the decay energy is for neutronium. i'd like to find out if it would be a suitable fuel source for our civilization's needs (if we ignore the problem of extracting it from ...
user320481
0
votes
1
answer
107
views
Minimum energy of proton converting into a neutron
I'm given the isotope sodium 22 (which is positron emitter) and I'm stuck with calculating the minimum energy that a proton needs to convert into a neutron and a positron.
It got to do with $E=MC^2$ ...
- 1
1
vote
2
answers
3k
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Calculate kinetic energy of neutrons in nuclear fission
How can I calculate the mean kinetic energy of an emitted neutron in a nuclear fission. Take for example the fission of U-235 to Ba-141 and Kr-92.
A calculation which just shows that the mean energy ...
- 1,692
0
votes
2
answers
223
views
Can any element absorb neutron in low energy?
I read somewhere that neutron can be absorbed by any element if we provide sufficient energy to the neutron and the element. I want to ask that if we have an energy spectrum of 1Gev/c and 10Gev/c and ...
1
vote
1
answer
1k
views
Total energy of neutrons and protons
In a stable nucleus, are the total energies of neutrons and protons same?
- 517
2
votes
1
answer
3k
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Why can "slow" neutrons trigger fission?
My understanding of nuclear fission is that some massive isotopes such as uranium-235 are unstable and when split via fission there will be a "slow" neutron. This slow neutron will hit another ...
- 13k
3
votes
2
answers
547
views
Free Neutron Decay as an Energy source
I suspect there would be enormous engineering and practical difficulties using free neutron decays as a energy source (more as a battery than a net energy supplier) but assuming those could be ...
- 143
3
votes
2
answers
789
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Can a neutron be created from pure energy
Is it possible to create a neutron out of pure energy, i.e. not by bringing a bunch of already-existing quarks together? (A quick calculation using E = mc2 shows the energy required would be about 1.5 ...
- 175