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AbstractAbstract
[en] In a magnetically confined sputter-ion vacuum pump a multi-apertured anode electrode is interposed between a pair of reactive cathode electrode plates. An evacuable envelope encloses the anode and cathode electrodes and a magnetic circuit surrounds the vacuum envelope for producing a glow discharge confining magnetic field extending axially of the apertures in the anode. The reactive cathode plates include peripheral sealing flanges for compressing a sealing gasket into sealing engagement with a pair of sealing surfaces at opposite ends of a tubular main body portion of the envelope. A clamping ring structure, having a bolt circle formed therein, serves to clamp the two reactive cathode plates to the main body and also serves as an integral part of the magnetic circuit. Water coolant channels are brazed to the outer surfaces of the cathode plates for cooling same in use. The magnetic circuit includes a pair of ferrite magnets disposed outside the envelope on opposite sides of the cathodes and enclosed by a magnetic yoke to minimize the size and weight of the magnet and to reduce unwanted stray magnetic fields
Original Title
Patent
Primary Subject
Source
30 Nov 1976; 6 p; US PATENT DOCUMENT 3,994,625/A/
Record Type
Patent
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Santos, C.; Landers, R.; Pinelli, C.P.
Proceedings of the 13. National Meeting on Condensed Matter Physics1990
Proceedings of the 13. National Meeting on Condensed Matter Physics1990
AbstractAbstract
[en] Published in summary form only
Original Title
Construcao de um prototipo de bomba ionica de alto desempenho (AD) na regiao de ultra-alto vacuo 10 sup(-9) torr
Source
Almeida Fonseca, A.L. de (Brasilia Univ., DF (Brazil)); Koiler, B. (Pontificia Univ. Catolica do Rio de Janeiro, RJ (Brazil)); Brescansin, L.M. (Universidade Estadual de Campinas, SP (Brazil)) (and others); Sociedade Brasileira de Fisica, Rio de Janeiro, RJ (Brazil); 284 p; 1990; p. 101; 13. National Meeting on Condensed Matter Physics; Caxambu, MG (Brazil); 8-12 May 1990; Available from the Library of the Comissao Nacional de Energia Nuclear, RJ, Brazil
Record Type
Miscellaneous
Literature Type
Conference
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Blechschmidt, D.; Bojon, J.-P.; Chapman, G.; Jenson, D.; Monnier, B.; Nordstrom, H.
Proceedings of the eighth international vacuum congress1980
Proceedings of the eighth international vacuum congress1980
AbstractAbstract
[en] An integrated sputter-ion pump, specially designed for the use in high magnetic fields < 1 T is presented. The pump module (300 mm long, 30 mm wide and 16 mm high) is made of 4 strips of titanium alloy packed in a sandwich structure; the outer pair serves as the cathodes, each of the inner strips is perforated by 389 holes of 4 mm diameter. They are aligned coaxially such as to form the usual anode cell configuration. The design was computer-optimized, using the semiempirical formulism by Hartwig and Kouptsidis. Pumping speed measurements were carried out in the range 10-10 to 10-7 Torr for air as a function of the magnetic field, the residual gas pressure and the anode voltage. The pumping speed above the transition field of about 0.5 T (at 10-8 Torr and 3 kV) is about 50 l/s and constant up to at least 1.8 T
Primary Subject
Source
Langeron, J.P.; Maurice, L. (eds.); 587 p; 1980; p. 159-163; Societe Francaise du Vide; Paris, France; 8. International vacuum congress; Cannes, France; 22 - 26 Sep 1980
Record Type
Book
Literature Type
Conference
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AbstractAbstract
[en] The main vacuum pumping equipment of the SPS vacuum system at CERN consists of two types of sputter ion pumps: about 650 pumps with 35 l/s speed in the normal sectors and 160 pumps with 420 l/s in the sections with special equipment. Reported are some of the experiments with theses pumps from the test phase of the prototypes and the initiating period of the SPS. It results that the pumps: - hold a working pressure 10 times below the original design value, - will allow the continuous running of the accelerator if the local pressure increase can be held below 1.10-5 mbar, - have a life time of about 1000 hours at a pressure of 4.10-5 mbar
Primary Subject
Source
Langeron, J.P.; Maurice, L. (eds.); 587 p; 1980; p. 143-146; Societe Francaise du Vide; Paris, France; 8. International vacuum congress; Cannes, France; 22 - 26 Sep 1980
Record Type
Book
Literature Type
Conference
Country of publication
Reference NumberReference Number
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INIS VolumeINIS Volume
INIS IssueINIS Issue
Welch, K.M.
Brookhaven National Lab., Upton, NY (USA). Funding organisation: USDOE, Washington, DC (USA)1991
Brookhaven National Lab., Upton, NY (USA). Funding organisation: USDOE, Washington, DC (USA)1991
AbstractAbstract
[en] It is shown that significant H2 pumping occurs in the walls of triode pumps. Also, H2 is pumped in the anode cells of sputter-ion pumps. This pumping occurs in a manner similar to that by which the inert gases are pumped. That is, H2 pumped in the walls of the anode cells by high energy neutral burial. Hydrogen in the pump walls and anodes limits the base pressure of the pump. 13 refs., 5 figs., 1 tab
Primary Subject
Secondary Subject
Source
1991; 4 p; 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC); San Francisco, CA (USA); 6-9 May 1991; CONF-910505--197; CONTRACT AC02-76CH00016; OSTI as DE91013595; NTIS; INIS; US Govt. Printing Office Dep
Record Type
Report
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Conference
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AbstractAbstract
[en] Many physics experiments used for nuclear diagnostics measure low energy particle emission as a function of time. Transmission of these particles from source to detector typically must occur in a rarefied or vacuum environment. In instances where the experiment is buried in the earth, ion pumps have been successfully used to produce vacuum pressures on the order of 10-4 Pa (10-6 torr). In this application, ion pumps offer significant advantages compared to other pump types. Because of their simplicity, ion-pumped vacuum systems are inherently reliable. Only one coaxial cable is required to both power the system and monitor the pressure. Ion pumps remove gas through an ionization process. Since the vacuum pressure is directly proportional to ion current at these pressures, no additional instrumentation is required for pressure measurement. Some of the specifics associated with these systems and some of the steps taken to assure system reliability are discussed
Primary Subject
Source
EG and G Energy Measurements, Inc., Las Vegas, NV (USA); p. 8.1-8.10; Jan 1985; p. 8.1-8.10; Symposium on remote sensing technology; Las Vegas, NV (USA); 23-25 Feb 1983; Available from NTIS, PC A19/MF A01; 1 as DE85010212
Record Type
Report
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Conference
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Reference NumberReference Number
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Ishimaru, H.; Narushima, K.; Nakanishi, H.; Horikoshi, G.
Proceedings of the eighth international vacuum congress1980
Proceedings of the eighth international vacuum congress1980
AbstractAbstract
[en] A new design for the vacuum system of an electron-positron storage accelerator (the TRISTAN project: 30 GeV, 10 mA x 10 mA) is presented
Primary Subject
Source
Langeron, J.P.; Maurice, L. (eds.); 587 p; 1980; p. 176-179; Societe Francaise du Vide; Paris, France; 8. International vacuum congress; Cannes, France; 22 - 26 Sep 1980
Record Type
Book
Literature Type
Conference
Country of publication
Reference NumberReference Number
Related RecordRelated Record
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Methane pumping out by a small-sized gadolinium two type pumps is investigated. Speed of methane pumping attains 40% that of nitrogen pumping out. Introduction of additional electrode - ionizer-grid, causes increase of the speed of methane pumping out from 3x10-4 to (85-6)x10-4 m3s-1
Original Title
Otkachka metana malogabaritnym gadolinievym getterno-ionnym nasosom
Primary Subject
Secondary Subject
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Journal Article
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Hseuh, H.C.; Mapes, M.; Snydstrup, L.
Proceedings of the 1993 Particle Accelerator Conference: Volume 51993
Proceedings of the 1993 Particle Accelerator Conference: Volume 51993
AbstractAbstract
[en] Distributed ion pumps (DIPs) will be used for the beam vacuum system of the g-2 muon storage ring. The magnetic field intensity and alignment angle at the DIP locations are not uniform. The pumping behavior of several different ion pump elements under this non-uniform magnet field has been studied. The results are compared with the theoretical predictions. Based on these results, the optimum design of the g-2 DIPs has been developed
Primary Subject
Secondary Subject
Source
Institute of Electrical and Electronics Engineers, Inc., New York, NY (United States); American Physical Society, Washington, DC (United States); 829 p; 1993; p. 3897-3899; PAC '93: international particle accelerator conference; Washington, DC (United States); 17-20 May 1993; Available from IEEE Service Center, 445 Hoes Lane, Piscataway, NJ 08854-4150
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Report
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AbstractAbstract
[en] Problems relating to physical processes defining operation of getter pumps are presented
Original Title
O fizicheskikh mekhanizmakh, opredelyayushchikh rabotu isparitel'nogo getternogo nasosa
Primary Subject
Source
2. Scientific-practical symposium 'Vacuum technology and equipment'; 2. Nauchno-prakticheskij simpozium ' Vakuumnye tekhnologii i oborudovanie'; Khar'kov (Ukraine); Nov 1998
Record Type
Journal Article
Literature Type
Conference
Journal
Voprosy Atomnoj Nauki i Tekhniki. Vakuum, Chistye Materialy, Sverkhprovodniki; ISSN 1680-192X;
; v. 4,5(5,6); p. 5-6

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