Chain Fission Yield (%) for 233U,235U,239Pu, Thermal fission

Chain fission yield refers to the distribution of fission products produced when a heavy nucleus (such as Uranium-235 or Plutonium-239) undergoes nuclear fission. It is classified into three main types:

1. Independent Yield – The probability of directly producing a specific fission fragment immediately after fission, before any radioactive decay occurs.

2. Cumulative Yield – The probability of finding a specific fission product after all possible decay chains have been accounted for.

3. Chain Yield – The sum of the yields of all isotopes with the same mass number (A), regardless of their atomic number (Z).

Key Points about Chain Fission Yield:

• It represents how fission products are distributed in terms of their mass number.

• The chain yield curve typically has two peaks, one around mass numbers 90-100 and another around 130-140, due to the asymmetric nature of fission.

• It is crucial for reactor physics, nuclear waste management, and nuclear weapon design.

Reference

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