UHV chamber

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• Langmuir (unit) — Langmuir is a measure of gas exposure (or dosage) to a surface ( e.g. of a crystal) and is used in ultra high vacuum (UHV) surface physics. Assuming that every gas molecule which hits the surface sticks to it ( i.e., the sticking coefficient is 1 …   Wikipedia

• Ultra high vacuum — (UHV) is the vacuum regime characterised by pressures lower than about 10−7 pascal or 100 nanopascals ( 10−9 torr). UHV requires the use of special materials in creating the vacuum system, extreme cleanliness to maintain the vacuum system, and… …   Wikipedia

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