Published September 1991 | Version v1
Report Restricted

Cryo-cooled high-power window for high-frequency plasma heating

Creators

Description

Within the framework of gyrotron window development, IMF pursues the concept of a single-disk window with edge cooling. Compared to a double-disk window with surface cooling, this concept offers a number of advantages in terms of safety, reliability, and ease of design and fabrication. The coolants which can be used for this purpose are liquid nitrogen and helium at very low temperature. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Im Rahmen der Gyrotronfensterentwicklung wird vom IMF das Konzept eines Einscheiben-Fensters mit Randkuehlung verfolgt. Dieses Konzept bietet gegenueber dem Doppelscheibenfenster mit Flaechenkuehlung mehrere Vorteile in den Punkten Sicherheit, Zuverlaessigkeit und einfache Bauweise. Als Kuehlmittel kommen fluessiger Stickstoff und Helium bei sehr niedriger Temperatur in Betracht. Im vorliegenden Bericht werden thermodynamische Rechnungen zur Randkuehlung mit fluessigem Sticksotff behandelt. Es werden Auswirkungen von verschiedenen Parametern und Faktoren auf die Leistungsgrenze gezeigt. (orig.)

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Additional details

Additional titles

Subtitle (English)
Thermodynamic study of the single-disk concept with liquid nitrogen edge cooling

Publishing Information

Imprint Pagination
65 p.
Report number
KFK--4930

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
23018284
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
COOLANTS; COOLING; CRYOGENICS; FABRICATION; HEAT FLUX; HELIUM; HIGH-FREQUENCY HEATING; MICROWAVE RADIATION; MONOCRYSTALS; NITROGEN; NUCLEATE BOILING; POWER DENSITY; POWER DISTRIBUTION; RELIABILITY; SAFETY; SAPPHIRE; TEMPERATURE DISTRIBUTION; THERMAL CONDUCTIVITY; THICKNESS; TIME DEPENDENCE; WINDOWS
Descriptors DEC
BOILING; CORUNDUM; CRYSTALS; DIMENSIONS; DISTRIBUTION; ELECTROMAGNETIC RADIATION; ELEMENTS; HEATING; MINERALS; NONMETALS; OPENINGS; OXIDE MINERALS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; PLASMA HEATING; RADIATIONS; RARE GASES; SPATIAL DISTRIBUTION; THERMODYNAMIC PROPERTIES