Is α-Decay the Same as Nuclear Fission? Understanding the Difference

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SUMMARY

Alpha decay and nuclear fission are distinct nuclear processes. Alpha decay involves the emission of an alpha particle from a nucleus, resulting in a new element, while fission refers to the splitting of a heavy nucleus into two or more smaller nuclei, typically producing significant mass loss. Although both processes involve the transformation of a nucleus, fission generally results in at least two products that retain a substantial fraction of the original mass. The discussion clarifies that while cluster decays share characteristics with both alpha decay and fission, they are categorized separately.

PREREQUISITES
  • Understanding of nuclear physics concepts, specifically alpha decay and nuclear fission.
  • Familiarity with nuclear reactions and their classifications.
  • Knowledge of particle emission processes in nuclear reactions.
  • Basic grasp of mass-energy equivalence in nuclear transformations.
NEXT STEPS
  • Research the mechanisms of alpha decay in detail.
  • Study the principles of nuclear fission and its applications in reactors.
  • Explore cluster decay and its implications in nuclear physics.
  • Investigate the notation and processes involved in nuclear fusion and its differences from fission.
USEFUL FOR

Students of nuclear physics, researchers in nuclear energy, and professionals in the field of nuclear engineering will benefit from this discussion.

Haynes Kwon
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Is α-decay same as nuclear fission?
What is the difference?
 
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Typically it is only called "fission" if the process creates two or three nuclei of similar size, but that is purely a naming convention. Cluster decays are somewhere between alpha decays and fission.
 
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No, fission is not alpha decay and alpha decay is generally not considered as fission althoughit technically is a splitting of a nucleus in several parts. Generally, fission usually refers to the splitting of a nucleus in such a way that there are at least two products that carry a significant fraction of the original mass.
 
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Thank you all. May I ask one more?
I don't see why this is not nuclear fusion.

ace;P&space;}\quad&space;+\quad&space;_{&space;0&space;}^{&space;1&space;}{&space;n&space;}.gif
 
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Same thing: Just a matter of convention what is called fusion and what is not. I guess you could call that fusion, although ##(\alpha, n)## would be a more conventional notation for the reaction.
 
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Thank you very much.
 

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