Actinide Burner Conversion Rate: Fissile vs. Transuranic

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In summary, Cacuci, the editor of "Handbook of Nuclear Engineering," defines two times the conversion rate: one for fissile and another for transuranic. The term 'actinide' burner usually refers to transuranic nuclides, but could also include other elements such as Th and U. The conversion ratio is typically used to classify a system as a burner (C<1), converter (C≈1), or breeder (C>1). While the fissile conversion rate (C) is always smaller than the transuranic conversion rate (T), there may be situations where T<C or where the classification changes depending on which rate is chosen.
  • #1
hmeier
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Folks,

I was reading the Cacuci Handbook of Nuclear Engineering, and he defines two times the conversion rate, once as:

C= fissile produced/fissile consumed

but later as :

C= transuranic produced/transuranic consumed

and said that the breeding rate is the former but for fissile.

Anyone knows which is the correct unequivocal name for the rate of an actinide burner? It has a rate for fissile and another for transuranic how I should call them?

Thanks,

Hernán
 
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Cacuci is the editor of "Handbook of Nuclear Engineering." There are individual authors of the various chapters, e.g., Paul Turinsky on "Core Isotopic Depletion and Fuel Management," pp. 1241-1312.
Ref: http://link.springer.com/referenceworkentry/10.1007/978-0-387-98149-9_10#

It would help if one identifies the specific sections.

The term 'actinide' burner usually refers to TU nuclides, but could also include Th and U, as well as Np and Pu, which are of course, TU elements. However, given that use of Th is limited, actinide burners would focus mainly on U, Pu, Am, Cm.

The calculation of conversion ratio will be based on what fuel materials the system incorporates.
 
  • #3
Astronuc,

Thanks, you are right that Cacuci is just the editor. May be each author has a different definition.

My problem it´s with FRs classification, usually they are classified based on the conversion rate:
*<1 burner
*close 1 converter
*>1 breeder

Now If we compare the numbers for fissile conversion rate (C) vs TU conversion rate (T) I think that always T > C
But could exist a situation where T < C, or where the classification change if we choose T or C to classify?

Thanks in advance,

Hernán
 

FAQ: Actinide Burner Conversion Rate: Fissile vs. Transuranic

1. What is an actinide burner conversion rate?

An actinide burner conversion rate refers to the rate at which nuclear reactors can convert actinides (a group of radioactive elements) into other elements through fission reactions.

2. What is the difference between fissile and transuranic materials?

Fissile materials are substances that are capable of sustaining nuclear fission reactions, such as uranium-235 and plutonium-239. Transuranic materials, on the other hand, refer to elements that have atomic numbers higher than uranium (92), such as neptunium and americium.

3. How does the conversion rate of actinide burners vary between fissile and transuranic materials?

The conversion rate for fissile materials is generally higher than transuranic materials, as fissile materials are more readily fissionable. However, with advancements in reactor design and technologies, the conversion rate for transuranic materials is also improving.

4. Why is there a focus on actinide burner conversion rate?

Actinide burner conversion rate is important for reducing the amount of radioactive waste generated by nuclear reactors. By converting actinides into other elements through fission reactions, the amount and longevity of radioactive waste can be reduced.

5. What are the potential benefits of increasing the conversion rate of actinide burners?

Increasing the conversion rate of actinide burners can lead to a decrease in the amount and longevity of radioactive waste, as well as a reduction in the risk of nuclear proliferation. It can also increase the efficiency and sustainability of nuclear power as a form of energy production.

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