Bragg Curve

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The energy of an ion decreases when passing through a medium. The specific energy loss increases according to the Bethe-Bloch formula. The plot of the specific energy loss (which is related to the ionisation) along the track of a charged particle is called the Bragg curve. A typical Bragg curve for the passage of a high energy carbon ion through tissue is shown in the diagram.

Bragg curve for 2 GeV carbon ions in tissue


William Henry Bragg

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