All Questions
Tagged with scattering-cross-section neutrons
12
questions
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Neutron double differential capture cross section
Can one define what is the double differential capture cross section for a neutron, and how one would construct an experiment to calculate the double differential cross section as a function of energy ...
- 499
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149
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How is the Neutron capture cross section of Xenon-135 so high?
Xenon-135 has a Neutron capture cross section of 2-3 million barns, this is equivalent in area to a disk with a radius of 8-10pm. The cross sectional area of a Uranium nucleus is roughly 1 barn. The ...
- 2,908
1
vote
1
answer
69
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Conversion of Reich-Moore resonance parameters to neutron cross section?
For the Single-Level Breit-Wigner (SLBW) formula, the peak resonant neutron cross section is related to the total width, $\Gamma = \Gamma_{(n)} + \Sigma_{r}\Gamma_{(r)}$, reported as GT in ENDF. For ...
8
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What is cross section?
I am learning about unit Barn, it is a unit of cross section. I know it means how likely a particle is to interact with the material, it's like opacity or transparency in optics.
What I don't ...
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Why there are "missy" areas in ENDF neutron cross section (barn)/neutron energy plots for different elements?
I was looking in ENDF for neutron cross section (barn)/neutron energy plots in different elements. As i looked throw many elements, i realized that there is always an area at specific energies where ...
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Why does Gadolinium have the highest neutron cross section?
Gadolinium-157 has the highest thermal-neutron capture cross-section among any stable nuclide. Based on my layman's understanding of neutron capture – particularly the fact that (I assume) neutrons ...
- 924
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1
answer
25
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Why neutrons production is falling along beam axis in proton/nucleus collisions?
I'm studying a case where I simulate a protons beam (~70 MeV) on a spherical target composed of light nuclei such as carbon and oxygen. I'm looking for the angular distribution of neutrons produced by ...
- 69
4
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1
answer
623
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How to calculate scattering cross section from elastic, inelastic, and non-elastic cross section
I'm trying to find the scattering cross section of U-235 as outlined in Weston M. Stacy's reactor physics book.
I see ENDF gives me elastic, inelastic and 'non-elastic' scattering cross sections.
...
- 435
6
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218
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Intensity of inelastic neutron scattering: analitycal expressions
I am currently working with experimental results of magnon spectrum (in antiferromagnet with many atoms per unit cell), which was obtained by inelastic neutron scattering method, but some spectral ...
2
votes
1
answer
158
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Neutron activation time for Boron, Silver, and possibly other materials
How do i justify/explain that the time needed to activate Boron is 2 hours and the time needed to activate Silver in water is 45 minutes?
Response to comment:
In a neutron cross section experiment, ...
- 21
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2k
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Energy-dependent neutron cross section data
Where I can find a table with energy dependent cross sections for neutrons?
- 143
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143
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Do molecular bounded systems shield or reduce neutron cross-sections?
When talking about neutron cross-sections, literature is usually investigating isolated cases of Neutron + Atom. Here, the abundance of hydrogen is dominating neutron fluxes through material.
I ...
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