Are reactive metals that have been pressed onto solid substrates or sintered into discs. A specific combination of Zirconium, Vanadium and Iron has been found to work best for HV and UHV environments. The amount of material used controls the speed and capacity of the NEG pump, but typically range from 55 to 412 l/s and capacity from 630 to 3600 Torr l/s. As NEG’s become saturated with gases, they can be reactivated without venting to atmosphere.
capture pumps have no moving parts. Vibration from moving parts and electrical noise is eliminated
capture pumps are built with radiation tolerant materials in excess of 108 Gray. Connectors and cables are also built with radiation tolerant materials for years of continuous operation
without any special consideration, capture pumps can be baked to 250 °C. Removing the magnets allows for hotter bakes up to 450 °C. Long hot bakes are critical to every UHV system
capture pumps require virtually no maintenance and avoid costly vacuum events because they are sealed from atmosphere, saving time, money and resources
initial cost is typically less than comparable specifications of other types of vacuum pumps. They use minimal or no power for years of low cost operation