For a wide range of research and production applications, Dow704 Diffusion Pump Oil (Tetramethyl tetraphenyl trisiloxane) is used in large and medium diffusion pumps since a lower attainable pressure ...

If you need to create a high vacuum, there are basically two options: turbomolecular pumps and diffusion pumps. Turbomolecular pumps require rotors spinning at many thousands of rotations per minute ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Mercury diffusion pumps with hexapole ...

Dow704 diffusion pump oil (tetramethyl tetraphenyl trisiloxane) is used in large and medium diffusion pumps for a wide range of research and production applications, as the lower attainable pressure ...

REPORTING recently on the vacuums produced by diffusion pumps, Ray and Sengupta 1 quote my statement "that the limit of pumping is set at the vapour pressure of the pump fluid at room temperature" and ...

THERE has long been a need for a diffusion pump oil which, while hot, would withstand atmospheric pressure without bad effects. G. P. Brown (Rev, Sci. Inst., 16, 316 ; Nov. 1945) has found that ...