 Non-evaporable getter

A Non-Evaporable Getter (NEG) is a type of material used to create a vacuum or maintain a low-pressure environment in various applications, particularly in vacuum technology and ultrahigh vacuum systems. NEG materials are designed to chemically adsorb residual gases (such as water vapor, oxygen, nitrogen, and hydrocarbons) from the vacuum environment without the need for heating, which distinguishes them from other getter materials that require heating to activate their functionality.