Decay process scheme of 57-Cobalt

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    Decay Process
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Discussion Overview

The discussion focuses on the decay process scheme of 57-Cobalt, specifically the energy transitions involved and the probabilities associated with these transitions, including the transition from the 136 keV state to the ground state of 57-Iron. Participants express confusion over terminology and seek comprehensive information on the decay processes.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant requests detailed information on the decay process of 57-Cobalt, emphasizing the need for clarity on energy transitions and probabilities.
  • Another participant mentions that 57-Cobalt undergoes electron capture and lists several possible gamma ray decays, providing links to decay schemes.
  • A participant highlights the significance of the 14.4 keV excited state of 57-Iron, noting its narrow natural linewidth and its role in demonstrating the Mossbauer Effect.
  • There is a query about the term "logft," indicating a need for clarification on this concept.
  • One participant shares their experience using online resources to analyze beta-decays and expresses curiosity about the relationship between decay patterns and experimental availability of energy levels.
  • Another participant recommends a different website that provides detailed information on gamma and internal conversion probabilities.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and confusion regarding the decay processes and terminology, indicating that the discussion remains unresolved with multiple viewpoints and resources shared.

Contextual Notes

Some participants refer to specific resources and websites for further information, but there is no consensus on the clarity of the decay process or the terminology used.

Who May Find This Useful

This discussion may be useful for individuals interested in nuclear physics, particularly those studying decay processes, gamma ray emissions, and related experimental techniques.

Rajini
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Hello everyone,
i need complete information on the decay process scheme of 57-Cobalt including the transition of energy in each level with probability (especially the transition from 136 to ground state of 57-Fe--i need to know all the complete process with probability)...After referring to some papers with different terminology..i am completely confused..
thanks for your reply.
 
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Hi Rajini-
The second URL astronuc referred you to is especially useful, because it shows the relationship of all the emitted gammas. Of special importance in the lower right corner is the 14.4 KeV excited state of Fe-57 with a 98 ns lifetime. The natural linewidth of this gamma is extremely narrow (calculate δE δt), and decays to the ground state of Fe-57. It has played a very imporant role in demonstrating the Mossbauer Effect, and in carrying out certain experiments in general relativity.
Bob S
 


Hi..
extremely helpful..That is what i was searching for..
Rajini
 


Hello again..
what is logft?
 


mathman said:

I love this resource. :!) And nndc too...

Time ago I used them to count the number of known beta-decays for each atomic number. I was surprised to notice that it has more or less the same shape that fission yields, and I was left wondering if it was cause or effect: either the uranium was to decay following this shape because of the huge availability of levels, or we humans know more levels in the areas where uranium decays, just because of experimental availability.
 


Hi a few cents..
This site is more informative..with all gamma and internal conversion probabilities..
http://www.nucleide.org/
 

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