IEVref: | 881-12-53 | ID: | |

Language: | en | Status: Standard | |

Term: | linear energy transfer (abbreviation LET) | ||

Synonym1: | restricted linear collision stopping power [Preferred] | ||

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Symbol: | L_{Δ}
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Definition: | of a charged particle in a medium; the quotient of dE by dl where dl is the distance traversed by a particle and dE is the energy loss due to collisions with energy transfer less than a specified value Δ usually expressed in electron volts$L}_{\Delta}={\left(\frac{\text{d}E}{\text{d}l}\right)}_{\Delta$ NOTE – Although the definition specifies an energy cutoff and not a range cutoff the energy losses are sometimes called "energy locally imparted".
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Publication date: | 1983-01 | ||

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$L}_{\Delta}={\left(\frac{\text{d}E}{\text{d}l}\right)}_{\Delta$
*L*_{100} means linear energy transfer for collisions with energy transfers less than 100 eV; *L*_{∞} means linear energy transfer when all possible energy transfers are included.

*L*_{∞} = *S*_{col}