A turbomolecular pump is a type of vacuum pump, superficially similar to a turbopump, used to obtain and maintain high vacuum. These pumps work on the...
11 KB (1,587 words) - 11:05, 9 December 2023
molecular drag pump. The turbomolecular pump invented in the 1950s, is a more advanced version based on similar operation, and a Holweck pump is often used...
15 KB (1,786 words) - 23:34, 18 May 2023
of vacuum pump, including the molecular drag pump, the diffusion pump, and the turbomolecular pump. Pumps can be broadly categorized according to three...
39 KB (4,574 words) - 18:52, 18 May 2024
diffusion pump outlet, where they are compressed to ambient pressure by the secondary mechanical forepump and exhausted. Unlike turbomolecular pumps and cryopumps...
10 KB (1,246 words) - 02:34, 8 May 2024
rotary compression pump cheap and it is widely used as a low vacuum pump, or a backing pump to a diffusion pump or turbomolecular pump. Rotary vane pump...
1 KB (193 words) - 11:59, 19 October 2020
10−11 mbar. In contrast to other common UHV pumps, such as turbomolecular pumps and diffusion pumps, ion pumps have no moving parts and use no oil. They...
9 KB (1,123 words) - 07:35, 20 May 2024
Vacuum (section Pumping and ambient air pressure)
observable evidence that rules out the possibility of vacuum". The suction pump was described by Arab engineer Al-Jazari in the 13th century, and later appeared...
66 KB (7,588 words) - 21:00, 14 June 2024
invents the principle of the dilution refrigerator 1955 – Willi Becker turbomolecular pump concept 1956 – G.K. Walters, W.M. Fairbank, discovery of phase separation...
23 KB (2,704 words) - 05:18, 22 February 2024
Edwards Vacuum (category Pump manufacturers)
Stokes piston pump operations, and Hibon Inc for £12.8 million from Smiths Group. In 2002, they purchased Seiko Industry's turbomolecular pump manufacturing...
36 KB (3,193 words) - 15:12, 4 April 2024
used in the Zippe-type centrifuge, for uranium enrichment and in turbomolecular pumps, where oil-lubricated bearings would be a source of contamination...
25 KB (2,911 words) - 12:32, 9 January 2024
difference between feed and permeate stream in Ultrafiltration Turbomolecular pump, a high vacuum pump This disambiguation page lists articles associated with...
2 KB (253 words) - 05:11, 28 January 2024
components (typically turbomolecular pumps and valves) and damage them. Many chambers containing TSPs also have an ion pump. Often the ion pump provides a good...
5 KB (743 words) - 00:30, 7 May 2024
joining the screen and funnel. The pump used is a turbomolecular pump or a diffusion pump. Formerly mercury vacuum pumps were also used. After baking, the...
264 KB (28,734 words) - 03:28, 14 June 2024
Ultra-high vacuum (section Pumping)
at low pressures. Pumps commonly used in this second stage to achieve UHV include: Turbomolecular pumps (especially compound pumps which incorporate a...
22 KB (3,058 words) - 21:00, 10 December 2023
pumping system that began in 1994 was completed. In particular, twelve turbomolecular pumps with oil bearings and four oil sealed rotary vacuum pumps...
34 KB (3,149 words) - 17:45, 12 March 2024
special sorption pumps, ion pumps and momentum transfer pumps i.e. turbomolecular pumps are used. Free molecular flow occurs in various processes such as...
3 KB (394 words) - 08:50, 2 May 2024
Infraserv Vakuumservice GmbH of Germany in order to strengthen their turbomolecular pump sales and service capabilities in Europe. In 2017, Shimadzu acquired...
9 KB (607 words) - 20:14, 11 December 2023
rough-turbo pump configurations similar to lab-scale instruments have been developed to be compatible with MMS. For high-vacuum pumping, turbomolecular pumps are...
25 KB (3,321 words) - 09:36, 18 August 2023
more powerful vacuum systems, most often turbomolecular pumps. Older instruments may have used oil diffusion pumps for high vacuum regions. Before mass separation...
47 KB (6,567 words) - 15:39, 21 May 2024
chemical vapor deposition. Equipment with diffusion pumps was replaced with those using turbomolecular pumps as the latter do not use oil which often contaminated...
104 KB (10,972 words) - 09:40, 23 May 2024
a single secondary electron multiplier is used for ion counting. Turbomolecular pumps evacuate the entire beam path of the SHRIMP to maximise transmission...
29 KB (2,508 words) - 06:49, 19 May 2024
pressure difference is maintained by three 500 L/s titanium ion and 4 turbomolecular pumps. The helium targets are contained in a 35 mm diameter vessel made...
12 KB (1,276 words) - 16:03, 7 October 2023
MOCVD, MBE and CBE can be seen in figure 1. A combination of turbomolecular and cryo pumps are used in standard UHV growth chambers. The chamber itself...
12 KB (1,661 words) - 16:11, 15 February 2024
sample. Common UHV pumps include turbomolecular and ion pumps, with roughing pumping typically performed using a rotary vane pump. Due to the extreme...
26 KB (3,474 words) - 12:58, 28 May 2024
external cooling system. Turbomolecular or diffusion pumps allow for particles to be evacuated from the bulk volume and cryogenic pumps, consisting of a liquid...
110 KB (14,052 words) - 01:10, 15 June 2024
the range of 10−8 to 10−9 Pa. This requires the use of turbomolecular or cryogenic vacuum pumps. The crystal manipulator allows for at least three different...
17 KB (2,568 words) - 19:23, 23 March 2024