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Stopping power or linear energy transfer (LET) is the energy lost per unit path length. Equation 6-2 expresses this relationship.
where
Specific ionization times the energy per ion pair yields the stopping power (LET), as shown in Equation 6-3.
Stopping power, or LET, is proportional to the specific ionization. Summary Stopping power is proportional to specific ionization. Radiation detection terms discussed in this chapter are summarized below. Radiation Detection Terms Summary An electron-ion pair is the product of a single ionizing event. Specific ionization is that number of ion pairs produced per centimeter of travel through matter. Stopping power is the energy lost per unit path length.
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