Non-Evaporable Getter

Non-Evaporable Getter

Non-Evaporable Getter (NEG) is a powder of an Al-Zr alloy that readily forms stable compounds with active gases. Sintered onto the inner surface of high vacuum vessels, it acts as a getter or getter pump that is able to reduce the pressure to less than 10−9 Torr. The NEG coating can be applied even to spaces that are narrow and hard to pump out, which makes it very popular in particle accelerators where this is an issue.



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  • 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

  • NEG — is an abbreviation that may refer to: the IATA code for Negril Aerodrome in Jamaica A section of an allium Net energy gain Non Evaporable Getter, a material used in high vacuum technology Negative, in various contexts, and a common military… …   Wikipedia

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