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An ion pump (also referred to as a sputter ion pump) is a type of vacuum pump which operates by sputtering a metal getter. Under ideal conditions, ion pumps are capable of reaching pressures as low as 10 −11 mbar. [ 1 ]
Non evaporable getters (NEG), based on the principle of metallic surface sorption of gas molecules, are mostly porous alloys or powder mixtures of Al, Zr, Ti, V and Fe. They help to establish and maintain vacuums by soaking up or bonding to gas molecules that remain within a partial vacuum.
A getter is a deposit of reactive material that is placed inside a vacuum system to complete and maintain the vacuum. ... Ion getter pump
Its construction and principle of operation is simple. It consists of a titanium filament through which a high current (typically around 40 A) is passed periodically. This current causes the filament to reach the sublimation temperature of titanium, and hence the surrounding chamber walls become coated with a thin film of clean titanium.
Ion pumps; Titanium sublimation pumps; Non-evaporable getter (NEG) pumps; Cryopumps; Diffusion pumps, especially when used with a cryogenic trap designed to minimize backstreaming of pump oil into the systems. Turbo pumps and diffusion pumps rely on supersonic attack upon system molecules by the blades and high speed vapor stream, respectively.
Other potential or current uses of rubidium include a working fluid in vapor turbines, as a getter in vacuum tubes, and as a photocell component. [58] Rubidium is also used as an ingredient in special types of glass, in the production of superoxide by burning in oxygen , in the study of potassium ion channels in biology, and as the vapor in ...
The size and weight is reduced to 1.54 L and 1.48 kg respectively, and it used 5 W power only. The PPMS is based on four parallel disk ion traps, a small ion getter pump and a micro-computer. The PPM can perform the scan ion mass of up to m/z 300 and detect the ppm concentration of organic gases diluted in the air. [22]
Raymond George Herb (January 22, 1908 – October 1, 1996) was an American professor of nuclear physics at the University of Wisconsin–Madison.He was known for building electrostatic accelerators.