Published October 1975 | Version v1
Report Restricted

The influences of noble gas on the volt-ampere characteristics of a thermionic Cs diode

Creators

Description

The influence of the distance between electrodes and of the partial pressure of added xenon on the voltage drop in the electrode gap is investigated by measuring current density-voltage curves on plane parallel thermionic test diodes. With unchanged diode parameters, an addition of xenon reduces the voltage drop when the product of Cs vapour pressure and electrode gap is smaller than an optimum value of about 5 x 10-2 cm.Torr. The xenon influences the mobility and thus the duration of the Cs ions. These procedures are explained and discussed using a relatively simple mathematical model. (GG/LH)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Durch Messungen von Stromdichte-Spannungs-Kurven an planparallelen thermionischen Versuchsdioden wird der Einfluss des Elektrodenabstandes und des Partialdruckes von zugesetztem Xenon auf den Spannungsverlust im Elektrodenzwischenraum untersucht. Bei unveraenderten Diodenparametern reduziert ein Zusatz von Xenon den Spannungsverlust dann, wenn das Produkt aus Cs-Dampfdruck und Elektrodenabstand kleiner ist als ein optimaler Wert von etwa 5 x 10-2 cm.Torr. Das Xenon beinflusst die Beweglichkeit und damit die Verweilzeit der Cs-Ionen. Anhand eines relativ einfachen mathematischen Modells werden diese Vorgaenge erlaeutert und diskutiert. (GG)

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Additional titles

Original title (German)
Der Einfluss von Edelgas auf die Kennlinien einer thermionischen Caesium-Diode

Publishing Information

Imprint Pagination
104 p.
Report number
Juel--1242

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
7250213
Subject category
S30: DIRECT ENERGY CONVERSION;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
CESIUM; COMPARATIVE EVALUATIONS; DATA; DIAGRAMS; DISTANCE; ELECTRIC CONDUCTIVITY; ELECTRODES; IONIZED GASES; LABORATORY EQUIPMENT; LIMITING VALUES; MATHEMATICAL MODELS; PRESSURE DEPENDENCE; REVIEWS; SCHOTTKY EFFECT; THERMIONIC DIODES; THERMIONIC EMISSION; VAPOR PRESSURE; WORK FUNCTIONS; XENON
Descriptors DEC
ALKALI METALS; DIODE TUBES; DOCUMENT TYPES; ELECTRICAL PROPERTIES; ELECTRON TUBES; ELEMENTS; EMISSION; FLUIDS; GASES; INFORMATION; METALS; NONMETALS; PHYSICAL PROPERTIES; RARE GASES; THERMIONIC TUBES; THERMODYNAMIC PROPERTIES

Optional Information

Notes
44 refs.; with figs.