Langmuir

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Langmuir is a scientific unit used in (material) surface science: 1 Langmuir = 10 ^{- 6} Torr sec = 1.33 * 10 ^{− 6} mbar sec = 0,133 mPa s

When exposing a material, e.g. a crystal, to a gas, the dose will often be measured in Langmuir. As an example, consider an exposure of 100L oxygen. Keeping the pressure of oxygen gas at say 2.5 * 10 ^{− 6} mbar for 53 seconds will give the required dose.

Langmuir is the name of several scientists:

• Alexander Langmuir, epidemiologist
• Charles Langmuir, geologist and nephew of Irving Langmuir
• Irving Langmuir, Nobel Prize-winning chemist and physicist and uncle of Charles Langmuir
• Langmuir, a chemical academic journal on colloids, surfaces, and interfaces, published by the American Chemical Society, [1].

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