By Topic

Study of electron emitters for use in gas lasers

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
D. MacNair ; Bell Telephone Labs., Inc., Murray Hill, NJ, USA

This paper describes various types of electron emitters that have been tested under conditions of interest in gas laser operations. In general, where "nonreactive" gases are used, some form of the BaSrO cathode will meet many requirements. Several matrix structures containing BaSrO are described that will stand up better under adverse conditions (ion bombardment, envelope poisoning) than the conventional sprayed cathode. Several hot hollow cathodes for use at high (15-100 amperes) currents were studied and are discussed. With reactive gases, such as O2, CO2, H2O, a BaZrO3cathode has been found to be very useful. This cathode is unique in that it emits better in an oxidizing atmosphere than it does in either an inert gas or vacuum.

Published in:

IEEE Journal of Quantum Electronics  (Volume:5 ,  Issue: 9 )