THE DEVELOPMENT OF AN ALKALI METAL VAPOR ARC LAMP.
Abstract
The report covers a twelve-month program to modify, fabricate and test alkali metal vapor arc lamps and to evaluate their potential as a visible and near infrared light source. Two lamp designs, designated Models K-503 and K-504, were evaluated during this program. Both models can operate with an input dc power from 70 to 300 watts, limited only by the ability to maintain a single liquid metal reservoir at low operating temperatures and the effects of oxidation at high temperature. These models both employ a hot cathode starting mode and use sapphire as the optically transparent portion of the containment vessel. One Model K-503 cesium vapor arc lamp operated to 3398 hours at a dc input power of approximately 225 watts. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1967
- Accession Number
- AD0660452
Entities
People
- F. E. Gelhaus
- S. W. Kessler