vacuum cold trap

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• Cold trap — For the atmospheric phenomenon, see Cold trap (astronomy). Cold trap immersed in cold medium in Dewar flask. Some workers prefer the opposite arrangement, where vapors flow down the wall of the trap, and are sucked up the inner tube; this reduces …   Wikipedia

• cold trap — noun In vacuum applications, a device that condenses all vapours except the permanent gases into a liquid or solid, typically to prevent contamination of a vacuum pump …   Wiktionary

• Cold finger — Cold fingers. A cold finger is a piece of laboratory equipment that is used to generate a localized cold surface. It is named for its resemblance to a finger as is a type of cold trap. Typically a cold finger is used in a sublimation apparatus,… …   Wikipedia

• Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… …   Wikipedia

• Magneto-optical trap — experimental setup of the MOT A magneto optical trap (abbreviated MOT) is a device that uses both laser cooling with magneto optical trapping in order to produce samples of cold, trapped, neutral atoms at temperatures as low as several… …   Wikipedia

• Central vacuum cleaner — The power unit of a typical central vacuum cleaner for residential use A central vacuum cleaner (also known as built in or ducted) is a type of vacuum cleaner appliance, installed into a building as a semi permanent fixture. Central vacuum… …   Wikipedia

• Ultra high vacuum — (UHV) is the vacuum regime characterised by pressures lower than about 10−7 pascal or 100 nanopascals ( 10−9 torr). UHV requires the use of special materials in creating the vacuum system, extreme cleanliness to maintain the vacuum system, and… …   Wikipedia

• Schlenk line — A Schlenk line with four ports. The cold trap is on the right …   Wikipedia

• Cryopump — A cryopump is a vacuum pump that traps gases and vapours by condensing them on a cold surface. They are only effective on some gases, depending on the freezing and boiling points of the gas relative to the cryopump s temperature. They are… …   Wikipedia

• Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… …   Wikipedia

• Sublimation (phase transition) — Dark green crystals of nickelocene, freshly sublimed on a cold finger …   Wikipedia