Performance characteristics of the DIII-D advanced divertor cryopump

Performance characteristics of the DIII-D advanced divertor cryopump

A cryocondensation pump, cooled by forced flow of two-phase helium, has been installed for particle exhaust from the divertor region of the DIII-D tokamak. The Inconel pumping surface is of coaxial geometry, 25.4 mm in outer diameter and 11.65 m in length. Because of the tokamak environment, the pum...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Baxi, C.B., Campbell, G.L., Holtrop, K.L., Hyatt, A.W., Laughon, G.J., Makariou, C.C., Mahdavi, M.A., Reis, E.E., Schaffer, M.J., Schaubel, K.M., Scoville, J.T., Smith, J.P., Stambaugh, R.D.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Coaxial components
Geometry
Heat pumps
Helium
Hydrogen
Laboratories
Plasma stability
Plasma temperature
Springs
Tokamaks
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A cryocondensation pump, cooled by forced flow of two-phase helium, has been installed for particle exhaust from the divertor region of the DIII-D tokamak. The Inconel pumping surface is of coaxial geometry, 25.4 mm in outer diameter and 11.65 m in length. Because of the tokamak environment, the pump is designed to perform under relatively high pulsed heat loads (300 W m/sup -2/). Results of measurements made on the pumping characteristics for D/sub 2/, H/sub 2/, and Ar are discussed.
DOI:10.1109/FUSION.1993.518502