Neutronics in Fusion: Difference between revisions

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[https://en.wikipedia.org/wiki/Neutron_transport Neutron transport] in [https://en.wikipedia.org/wiki/Nuclear_fusion fusion] describes the behavior and interactions of neutrons produced during fusion reactions. In [[Nuclear fusion]] systems, especially in deuterium–tritium reactions, high-energy neutrons (about 14.1 MeV) are generated in large numbers. These neutrons carry most of the fusion energy and interact with the surrounding materials, where their energy is deposited through scattering and nuclear reactions. Neutronics analysis is therefore essential for predicting energy deposition, material damage, radiation shielding requirements, and tritium breeding performance. Understanding neutronics is a key aspect of designing safe, efficient, and sustainable fusion reactors.
[https://en.wikipedia.org/wiki/Neutron_transport Neutrons] generated in [https://en.wikipedia.org/wiki/Nuclear_fusion fusion reactions] carry most of the fusion energy and interact with surrounding materials <ref name="NeutronTransport"/><ref name="NuclearFusion"/>. In fusion systems, especially deuterium–tritium reactions, high-energy neutrons (about 14.1 MeV) are produced in large numbers. Their energy is deposited into surrounding materials through scattering and nuclear reactions. Neutronics analysis is therefore essential for predicting energy deposition, material damage, radiation shielding requirements, and tritium breeding performance. Understanding neutronics is a key aspect of designing safe, efficient, and sustainable fusion reactors.




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'''Note:''' Because tritium is extremely rare in nature (half-life ≈ 12.3 years), fusion reactors are initially supplied with tritium from existing stockpiles (primarily from CANDU fission reactors), after which tritium is continuously bred from lithium within the reactor blanket to sustain operation<ref name="TritiumCANDU"/>.
'''Note:''' Because tritium is extremely rare in nature (half-life ≈ 12.3 years), fusion reactors are initially supplied with tritium from existing stockpiles (primarily from CANDU fission reactors), after which tritium is continuously bred from lithium within the [[Breeding blanket]] to sustain reactor operation <ref name="TritiumCANDU"/>.
 


== Neutron Modeling in Plasma Codes ==
== Neutron Modeling in Plasma Codes ==
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== External links ==
== External links ==
* [https://link.springer.com/book/10.1007/978-981-10-5469-3 Neutronics in Fusion Reactors – Springer Book]
* [https://link.springer.com/book/10.1007/978-981-10-5469-3 Fusion Neutronics – Springer Book]
* [https://en.wikipedia.org/wiki/Nuclear_fusion Nuclear Fusion – Wikipedia article]
* [https://en.wikipedia.org/wiki/Nuclear_fusion Nuclear Fusion – Wikipedia article]
* [https://www.iter.org/machine/supporting-systems/tritium-breeding Tritium Breeding – ITER]
* [https://www.iter.org/machine/supporting-systems/tritium-breeding Tritium Breeding – ITER]
* [https://www.tandfonline.com/doi/full/10.1080/15361055.2022.2141528 Advancing Methods for Fusion Neutronics: An Overview of Workflows and Nuclear Analysis Activities at UKAEA]
* [https://link.springer.com/book/10.1007/978-981-13-6520-1 Neutronics of Advanced Nuclear Systems]
* [https://doi.org/10.1016/S0920-3796(00)00160-5 Neutronics on inertial fusion reactors]


== References ==
== References ==
<references>
<references>
<ref name="NeutronTransport">
"Neutron transport," Wikipedia, https://en.wikipedia.org/wiki/Neutron_transport
</ref>
<ref name="NuclearFusion">
"Nuclear fusion," Wikipedia, https://en.wikipedia.org/wiki/Nuclear_fusion
</ref>


<ref name="BreedingBlanket">
<ref name="BreedingBlanket">