Search results
Results from the WOW.Com Content Network
The vaporized getter, usually a volatile metal, instantly reacts with any residual gas, and then condenses on the cool walls of the tube in a thin coating, the getter spot or getter mirror, which continues to absorb gas. This is the most common type, used in low-power vacuum tubes. Non-evaporable getter (NEG) [8]
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 ]
The NEG acts as a getter or getter pump that is able to reduce the pressure to less than 10 −12 mbar. Non-evaporable getters , which work at high temperature, generally consist of a film of a special alloy, often primarily zirconium ; the requirement is that the alloy materials must form a passivation layer at room temperature which ...
Often a setter is accompanied by a getter, which returns the value of the private member variable. They are also known collectively as accessors . The mutator method is most often used in object-oriented programming , in keeping with the principle of encapsulation .
In its most restricted sense, a collier is a worker who "gets" the coal, i.e. a hewer or coal getter. Contraband. Contraband was material banned from being taken down the mine, generally for safety reasons, such as matches and cigarettes. Miners were regularly checked for contraband. Corf or corve
Will Ferrell is ready for his close-up! On Tuesday, Jan. 28, the actor, 57, appeared on the Today show and expressed his disappointment at not being named PEOPLE’s Sexiest Man Alive last year ...
The M44 was invented in the 1960s to replace a similar device known as a 'Coyote Getter', which had been in use since the 1930s. The Coyote Getter used a .38 Special pistol cartridge case to contain the sodium cyanide mixture, and ejected the cyanide with a primer. The wad and cyanide were ejected with great force and could be quite hazardous.
Anyone researching SAES Getters S.p.A. (BIT:SG) might want to consider the historical volatility of the share price...