Ultra High Vacuum Systems

Ultra High Vacuum Pumps

Creating the purest vacuum environments on earth

Gamma Vacuum pumps - ultra-high vacuum technologies

Edwards offers a range of Ion Pumps, Titanium Sublimation Pumps, Non-Evaporable Getter Pumps and accessories exclusively through Gamma Vacuum.

Gamma Vacuum Titan Ion Pump
Ion Pumps

Ion pumps, also known as sputter ion pumps or ion getter pumps, are capture pumps that ionize gases using an anode/cathode array. Ions sputter reactive cathode materials, creating a chemical reaction that turns the ionized gases into solid compounds. Those compounds no longer contribute to the pressure of the vacuum system and are permanently captured within the ion pump. Ion pumps can operate from 10-5 to 10-12 mbar and range in size from 0.2 to 1,200 l/s of nitrogen.

Gamma Vacuum Titanium Sublimation Pumps
Titanium sublimation pumps

TSP’s operate by heating a titanium filament and subliming (converting from solid to gas phase) titanium molecules onto a surface. Sublimed titanium molecules are then available to chemically react with reactive gases, like oxygen and nitrogen, and disassociate and diffuse hydrogen. TSP’s can operate from 10-5 to 10-12 mbar and have pumping speeds in excess of 10,000 l/s of hydrogen.

NEG Cartridge N200
Non-evaporable getter pumps

NEGs’s 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 50 to 3,500 l/s of hydrogen. As NEG’s become saturated with gases, they can be reactivated without venting to atmosphere.

Mechanical vibration eliminated

capture pumps have no moving parts. Vibration from moving parts and electrical noise is eliminated

High radiation tolerance

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

High temperature tolerance

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

Regular maintenance eliminated

capture pumps require virtually no maintenance and avoid costly vacuum events because they are sealed from atmosphere, saving time, money and resources

Low initial operational costs

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

How Ion Pumps Work by Gamma Vacuum

Ion pumps are a vacuum capture pump and this video explains the basic principles of how they operate. Those new to ion pumps will find this very informative. Seasoned particle physicists, on the other hand, will be pleasantly amused at the creativity used to present this technology to newbies

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Ion Pump Element Styles by Gamma Vacuum

Ion pumps are a vacuum capture pump and this video explains the differences in conventional diode (CV), differential diode (DI or noble diode), and triode (TR) styles of ion pump elements.

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Titanium Sublimation Pump Operation by Gamma Vacuum

Basic description of how a titanium sublimation pump (TSP) is used to remove gas molecules from a high or ultra-high vacuum system. TSPs are commonly used in conjunction with ion pumps. This video has no audio.

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Non-Evaporable Getter (NEG) Operation by Gamma Vacuum

Basic description of how a non-evaporable getter (NEG) is used to remove gas molecules from a high or ultra-high vacuum system. NEGs are commonly used in conjunction with ion pumps. *This video has no audio.*

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