microeinstein

microeinstein
(µE)
   a unit of light energy concentration used in measuring the flux or density of light or any form of electromagnetic radiation. The microeinstein is equal to 10-6 einstein or one micromole of photons. The density of photosynthetically active radiation, for example, is reported in microeinsteins per second per square meter (µE/s·m2).

Dictionary of units of measurement. 2015.

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  • microeinstein — noun The unit equal to one millionth of an einstein …   Wiktionary

  • Einstein (unit) — An einstein is a unit used in irradiance and in photochemistry. One einstein is defined as one mole of photons, regardless of their frequency. Therefore, the number of photons in an einstein is Avogadro s number, 6.022×1023. Irradiance might be… …   Wikipedia

  • Photosynthetically active radiation — The expression Photosynthetically Active Radiation, often abbreviated PAR, designates the spectral range of solar light from 400 to 700 nanometers that is useful to terrestrial plants in the process of photosynthesis. This spectral region… …   Wikipedia

  • µE —    see microeinstein …   Dictionary of units of measurement

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