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AbstractAbstract
[en] Within the framework of the European fusion technology programme, a primary vacuum pump for international thermonuclear experimental reactor (ITER) is being developed. As the tritium inventory accumulated by the pumps must be limited, short pumping cycles are required. At two facilities, different fast heating and cooling techniques of cryosorption panels were investigated. The results for the most advantageous methods are presented. It is shown that fast regeneration of ITER cryopanels is technically feasible. (orig.)
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4. international symposium on fusion nuclear technology (ISFNT-4); Tokyo (Japan); 6-11 Apr 1997; 5 refs.; Part A
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AbstractAbstract
[en] Some problems relating to cryopumps for selective pumping of impurity gases in the ''Globus'' tokamak are considered. The dependence on geometry of the pumping speed of the system was determined in molecular regime and taking into account the influence of unpumped hydrogen. The values of the heat load of the cryopumping systems are estimated under different operating conditions. Several types of cooling system are proposed. (Author)
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14. international cryogenic engineering conference and international cryogenic materials conference: cryogenic engineering and superconductor technology; Kiev (Ukraine); 8-12 Jun 1992
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AbstractAbstract
[en] The purpose of the paper is to raise and discuss problems connected with possible operating conditions of a helium condensation pump (HCP) with a capacity of 106 l/s and higher, designed to pump out hydrogen in hot, thermonuclear, in particular, systems, and discussion of functional modes of a helium cryogenic supply system. This makes possible the development of efficient pumps with a low energy-rate factor W/S, where W is the power required for operation of the refrigerating device, determined by the amount of heat supplied to the cryogenic pumps and by the efficiency of the refrigerating device; S is the pumping rate of the HCP. It is shown that the geometry of the pumping-out system and of the cryogenic supply system should be selected with provision for the results of the analysis of factors listed in the tables and for operating conditions of cryogenic pumps. Model experiments showed that it is possible to construct HPC for pumping out hydrogen with a rather high energy-rate factor equal to (2-3)x10-2 W/l/s
Original Title
O nekotorykh problemakh sozdaniya vysokoproizvoditel'nykh kondensatsionnykh nasosov dlya otkachki vodoroda
Source
AN Ukrainskoj SSR, Kharkov. Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki; no. 2(2); p. 3-7; 1978; p. 3-7; 1. All-union seminar on cryogenic techniques for high-vacuum production; Khar'kov, Ukrainian SSR; 22 - 24 Nov 1977; 21 refs.; 4 figs.
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AbstractAbstract
[en] The special problems related to the operation of the cryopumpsystems at JET during the active (D/T) phase are reviewed. The main aspects are the effects of neutrons - thermal load and activation of the cryogenic fluids and structure - the tritium inventory and safety, the radiation compatibility of cryostructure and instrumentation and the production of hazardous ozone under radiation conditions. Most of the results of the analysis can be applied to any other fusion cryosystem by appropriate scaling. (author). 9 refs.; 2 figs.; 3 tabs
Primary Subject
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Ingen, A.M. van; Nijsen-Vis, A. (Associatie Euratom-FOM, Nieuwegein (Netherlands). FOM-Instituut voor Plasmafysica); Klippel, H.T. (Netherlands Energy Research Foundation, Petten (Netherlands)) (eds.); 937 p; ISBN 0 444 87369 4;
; 1989; p. 781-785; North-Holland; Amsterdam (Netherlands); 15. Symposium on fusion technology; Utrecht (Netherlands); 19-23 Sep 1988

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AbstractAbstract
[en] The cryogenic department of the IPN realized a cryopump of the liquid helium bath type. Performances are measured (pumping speed, consumption of cryofluids, holding time)
[fr]
Le service basses temperatures de l'IPN a realise une cryopompe a bain d'helium liquide. Ses performances (vitesse de pompage, consommation cryofluides, autonomie) ont ete mesureesOriginal Title
Cryopompe I.P.N
Source
Jan 1977; 11 p
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Kernert, Norbert
KATRIN-Collaboration2011
KATRIN-Collaboration2011
AbstractAbstract
No abstract available
Original Title
Status des Quell- und Transportsystems von KATRIN
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DPG Spring meeting of the DPG divisions educational physics and hadronic and nuclear physics; Muenster (Germany); 21-25 Mar 2011; Available from http://www.dpg-verhandlungen.de; Session: HK 19.2 Di 14:30; Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 46(2)
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Journal Article
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Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195;
; CODEN VDPEAZ; (Muenster 2011 issue); [1 p.]

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Bottiglioni, F.; Coutant, J.; Fois, M.; Duthil, R.; Gelebart, J.C.; Lottin, J.C.
Association Euratom-CEA sur la Fusion, Centre d'Etudes Nucleaires de Fontenay-aux-Roses, 92 (France). Dept. de Physique du Plasma et de la Fusion Controlee1977
Association Euratom-CEA sur la Fusion, Centre d'Etudes Nucleaires de Fontenay-aux-Roses, 92 (France). Dept. de Physique du Plasma et de la Fusion Controlee1977
AbstractAbstract
[en] A cryogenic pump is described, specially designed to be used in an electrostatic particle accelerator. The same tubular liquid helium bath provides pumping in the accelerating tube and around the beam. The temperature of the bath can be adjusted between 2.2 and 4.2 deg K, the liquid helium level, in the low pressure bath, is keeped constant through a feeding system made of an heat exchanger and an expansion valve. An auxiliary container for liquid nitrogen and liquid helium, at atmospheric pressure, allows a several days continuous run without filling. This system allows refilling of the container without changing the pressure on the bath
[fr]
On decrit une pompe cryogenique a bain d'helium liquide specialement etudiee pour etre inseree dans un accelerateur electrostatique de particules. Le meme bain, de forme tubulaire, assure le pompage dans le tube accelerateur et autour du faisceau accelere qui traverse la pompe. La temperature du bain est ajustable entre 2,2 et 4,2 deg K, son niveau est maintenu constant, a pression reduite, par un systeme d'alimentation continue constitue d'un echangeur et d'une vanne de detente. Une reserve d'azote et d'helium liquides a pression atmospherique assure a la pompe une autonomie de plusieurs jours. Cette reserve peut etre renouvelee sans perturber les caracteristiques de la pompeOriginal Title
Pompe cryogenique a longue autonomie pour accelerateur de particules
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Jun 1977; 27 p
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AbstractAbstract
No abstract available
Original Title
Entwicklung von Kryosorptionspumpen
Source
Beschleunigerlaboratorium der Univ. und Technischen Univ. Muenchen, Garching (Germany, F.R.); 181 p; 1982; p. 150-151; Published in summary form only.
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Miscellaneous
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AbstractAbstract
[en] A vacuum post for pumping-out of devices, used for adsorbents investigation, is described. Such vacuum post, generating pure oilless vacuum, is necessary to regenerate adsorbents under investigation. Pure oilless vacuum is produced with the help of two forevacuum pumps with the following pumping-out with highvacuum adsorption and titanium pumps. Adsorption pumps are cooled by liquid nitrogen. It is established in the result of the test of vacuum post with four devices with adsorbents connected with it, that using only adsorbtion pumps for pumping-out the pressure of P = 10-1 Pa is achieved in devices; after preliminary blowing of all system with dry nitrogen P=10-2 Pa; during the simultaneous operation of adsorption and titanium pumps at two-hour heating of devices with adsorbents P=6x10-3 Pa, and at 6-hour heating P=3.2x10-4 Pa. The limit vacuum, achieved by vacuum post, is equal to 5x10-5 Pa with devices P=1.2x10-4 Pa. The devices heating has been carried out at 200 deg C. All post sealings are resin. Described vacuum post permits to accelerate adsorbent regeneration in devices without pollution of studied adsorbent with working substance of pumps
[ru]
Original Title
Vakuumnyj post
Source
AN Ukrainskoj SSR, Kharkov. Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki; no. 1(15); 120 p; 1981; p. 11-12; 2 refs.; 2 figs.
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AbstractAbstract
[en] The vacuum requirements for the Plasma Exhaust Pumping System (PEPS) of NET and the design requirements for NET-operation are described. Various possible solutions of cryopump arrangements are analyzed and discussed. A conceptual design is presented, which is based on four cryopumps, each with a pumping speed of 150.000 l/s. (author). 5 refs.; 3 figs.; 2 tabs
Primary Subject
Source
Ingen, A.M. van; Nijsen-Vis, A. (Associatie Euratom-FOM, Nieuwegein (Netherlands). FOM-Instituut voor Plasmafysica); Klippel, H.T. (Netherlands Energy Research Foundation, Petten (Netherlands)) (eds.); 937 p; ISBN 0 444 87369 4;
; 1989; p. 786-790; North-Holland; Amsterdam (Netherlands); 15. Symposium on fusion technology; Utrecht (Netherlands); 19-23 Sep 1988

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