Monday, November 08, 2004

Vacuum Technology

This pump is mainly used on equipment for the study of clean surfaces and in radio-frequency sputtering. Capacities are available up to 190,000 cu ft per minute with an operating pressure range of 10-2 to less than 10-9 torr when water-cooled baffles are used and less than 10-11 torr when refrigerated baffles are employed. The pumping speed for a vapour pump remains constant from about

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