Sentence examples for by a diffusion pump from inspiring English sources

The discharge chamber was evacuated by a diffusion pump supported by a rotary pump, and the base pressure was maintained below 2 × 10−3 Pa.

In vivo testing would administer the oligos to tumors carried in athymic nude mice by either intratumoral inoculation or by using a diffusion pump.

This vacuum chamber operated with a combination of a mechanical and a diffusion pump.

Theoretical consideration of the thermodynamics of the processes occurring in the pump fluid of a diffusion pump has contributed to the understanding of pump operation.

The chamber was evacuated down to 2.6×10-4 Pa (2×10-6 Torr) using a combination of a mechanical and a diffusion pump.

The expansion chamber is pumped by an oil diffusion pump (pumping speed ∼3000 L s 1), and the second and third stages are pumped with turbomolecular pumps (500 and 60 L s 1, respectively).

Their evacuation was carried out by a fore pump and an oil-vapour diffusion pump for several hours.

Therefore, a two-stage liquid ring pump in combination with a booster vapor diffusion pump will be applied.

The diffusion pump is initially evacuated by an oil-sealed rotary pump to a pressure of about 0.1 torr or less.

The invention of the diffusion pump by the German physicist Wolfgang Gaede in 1915, with important improvements by the American chemist Irving Langmuir shortly thereafter, freed mass spectroscopy from the severe limitations of poor vacuum.

The deposition chamber was initially evacuated to achieve a base pressure of 5.3 × 10−5 torr by means of a rotary and diffusion pumps.