back scatter coefficient

in in situ microanalysis
Number of @B00583@ generated per @P04829@ for a given specimen and experimental condition. It depends on (mean) @A00499@ of the excited area of the sample, @A00346@ between electron beam and sample surface, primary electron energy and thickness of the sample.
PAC, 1983, 55, 2023. (Nomenclature, symbols and units recommended for in situ microanalysis (Provisional)) on page 2026 [Terms] [Paper]