# 17-24-086

spectral mass attenuation coefficient

μm(λ)

quotient of the spectral linear attenuation coefficient, μ(λ), and the mass density, ρ, of the medium

Note 1 to entry: The spectral mass attenuation coefficient is expressed in square metre per kilogram (m2·kg−1).

Note 2 to entry: This entry was numbered 845-04-79 in IEC 60050-845:1987.

Note 3 to entry: This entry was numbered 17-1223 in CIE S 017:2011.

Publication date: 2020-12