Anelastic average free path, indicated by IMFP as an inelastic mean free path, is an index of how an electron can travel inside a solid before losing its energy. If a monochromatic primary electron beam engages on a solid surface, most accidental electrons lose their energy because they interact strongly with matter, leaving excitement plasmon, forming an electronic gap and vibrational excitement. The intensity of the primary electrons, I0, is expressed by the distance d, in the solid. The decrease in intensity can be expressed as: I(d) = I0 exp(-d / λ(E))
where I (d) is the intensity after the primary electron beam traveled through the solid. Parameter λ (E), defined as an inelastic mean free path (IMFP), is defined as the distance that an electron beam can travel before its intensity decreases to 1 / e of its initial value. / p> ASTM definition changes wikitesto (EN) IMPF (λ) - Inelastic Mean Free Path. The average distance (in nanometers) that an electron with a given travels between successive inelastic collisions. IMPF (λ) - Anelastic average free path. The average distance (in nanometers) that an electron with a given path traverses between two successive anelastic collisions. Notemodify wikitesto Voices correlateemodify wikitesto
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