INVESTIGATION OF VARIOUS ACTIVATOR-REFRACTORY SUBSTRATE COMBINATIONS

Abstract

The effective work function of a dispenser cathode was measured at an operating temperature using a close-spaced diode. Life tests, instantaneous evaporation rates and pulsed emission measurements were made on a tungsten-barium orthosilicate dispenser cathode. A summary of the pertinent results of this investigation is given along with speculations on the emission mechanism. (Author)

Document Details

• Document Type: Technical Report
• Publication Date: Feb 26, 1962
• Accession Number: AD0290209

Entities

People

• J.h. Affleck

Organizations

• Air Force Cambridge Research Laboratories

Tags

DTIC Thesaurus Topics

• Critical Temperature
• Dispensers
• Emission
• Evaporation
• Glass Transition Temperature
• Life Tests
• Measurement
• Nesosilicates
• Substrates
• Transition Temperature
• Tungsten
• Work Functions

Fields of Study

• Physics

Readers

• Electronics Engineering
• Thin Film Deposition Science.

Technology Areas

• Space
• Space - Hall-Effect Thruster