Cold cathodes for sealed-off CO2 lasers

Front Cover
National Aeronautics and Space Administration, 1973 - Technology & Engineering - 60 pages
0 Reviews
Experimental results of a group of theoretically selected cold cathode materials are presented. These tests indicate Ag-CuO, Cu, and Pt-Cu as three new cold cathode materials for sealed-off CO2 lasers. The power output of a test laser with an Ag-CuO cathode and a gas volume of only 50 cu cm varied from 0.72 W to 1.1 W at 3000 hours and still yields 0.88 W after 8000 hours. Gas discharge tubes with Cu cathodes and a volume of 25 cu cm yield lifetimes in excess of 10,000 hours. Gas analysis results, obtained from a similar tube over a period of 3000 hours, look most promising. A Pt-Cu alloy cathode shows an extremely promising V-I characteristic over a period of 2800 hours.

From inside the book

What people are saying - Write a review

We haven't found any reviews in the usual places.

Contents

CONCLUSION
10
REFERENCES
11
APPENDIXLASER VI CHARACTERISTICS
47

Common terms and phrases

Bibliographic information