Mass attenuation coefficient

The mass attenuation coefficient or mass narrow beam attenuation coefficient of the volume of a material characterizes how easily it can be penetrated by a beam of light, sound, particles, or other energy or matter. In addition to visible light, mass attenuation coefficients can be defined for other electromagnetic radiation (such as X-rays), sound, or any other beam that attenuates. The SI unit of mass attenuation coefficient is the square metre per kilogram (m/kg). Other common units include cm/g (the most common unit for X-ray mass attenuation coefficients) and mL⋅g⋅cm (sometimes used in solution chemistry). "Mass extinction coefficient" is an old term for this quantity.

单词	Mass attenuation coefficient
释义	Mass attenuation coefficient 英语百科 Mass attenuation coefficient The mass attenuation coefficient or mass narrow beam attenuation coefficient of the volume of a material characterizes how easily it can be penetrated by a beam of light, sound, particles, or other energy or matter. In addition to visible light, mass attenuation coefficients can be defined for other electromagnetic radiation (such as X-rays), sound, or any other beam that attenuates. The SI unit of mass attenuation coefficient is the square metre per kilogram (m/kg). Other common units include cm/g (the most common unit for X-ray mass attenuation coefficients) and mL⋅g⋅cm (sometimes used in solution chemistry). "Mass extinction coefficient" is an old term for this quantity.
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