Attenuance filter

{
  "id": "MLC-T-CHM-000928",
  "term": "Attenuance filter",
  "field": "Chemistry",
  "definition": "An optical filter designed to reduce the intensity of incident radiation over a specific range of wavelengths without significantly altering its spectral distribution. This type of filter is characterized by its attenuance, which is the negative logarithm of the transmittance. It is commonly used to control light levels in spectroscopic experiments.",
  "synonyms": [
    "neutral-density filter"
  ],
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "filter",
    "radiant power"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2229 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/attenuance-filter/"
}