Introduction to Nuclear reactions
Introduction to Nuclear reactions
Introduction to Nuclear reactions
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Cross Section, σ<br />
σ = “effective area” of a target nucleus for a certain reaction<br />
Units are barns, b = 10 -28 m 2 (or mb = 10 -31 m 2 )<br />
The <strong>to</strong>tal effective area of all nuclei in target = σ (nAt)<br />
Rate of reaction<br />
= (incoming beam rate) x (<strong>to</strong>tal effective area) / (area of the target)<br />
R reaction<br />
= N i σ (nAt)/A = N i<br />
σ nt
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