linear attenuation coefficient (decadic attenuation coefficient)

in optical spectroscopy
https://doi.org/10.1351/goldbook.L03545
See:
attenuation coefficient
Source:
Green Book, 2nd ed., p. 32 [Terms] [Book]
See also:
Orange Book, 2nd ed., p. 212 [Terms]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 963 [Terms] [Paper]