Absorbed local spectral radiance

{
  "id": "MLC-T-CHM-000067",
  "term": "Absorbed local spectral radiance",
  "field": "Chemistry",
  "definition": "The rate at which radiant energy is absorbed per unit volume at a point in an irradiated medium, within a narrow wavelength interval, also called the local volumetric rate of energy absorption. For a collimated beam it equals the Napierian absorption coefficient multiplied by the spectral radiance at that point, and for a divergent beam the spectral spherical irradiance is used instead. It is expressed in watts per cubic metre per nanometre.",
  "synonyms": [
    "local volumetric rate of energy absorption"
  ],
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "PAC, 2011, 83, 931. 'Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)' on page 936 (https://doi.org/10.1351/PAC-REC-09-09-36)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/absorbed-local-spectral-radiance/"
}