Accession Number : AD0759752

Title :   IRCM Lamp Development.

Descriptive Note : Final rept. 1 Feb-31 Jul 72,

Corporate Author : EIMAC SAN CARLOS CALIF

Personal Author(s) : Sain,William H. ; Anderson,Norman C.

Report Date : 30 SEP 1972

Pagination or Media Count : 47

Abstract : The purpose of this program was to design, develop and fabricate two prototype CASPAR/CAIR arc lamps. The EIMAC IRCM source was patterned after the ADM-1 series E source. The lamp is of double envelope design. The inner (arc) envelope consists of a synthetic(cesium-filled)sapphire tube with refractory metal electrodes. The outer envelope, quartz/metal assembly, is evacuated to protect the inner envelope from oxidation during operation. High temperature brazing alloys for sapphire/Cb-1Zr seals were evaluated and thermal cycling tests made on brazed seal structures. Techniques for cesium filling were investigated. Power tests were run with the sapphire inner envelope portion in a vacuum bell jar to verify the thermal design and determine basic design deficiencies. (Author)

Descriptors :   (*INFRARED LAMPS, RELIABILITY(ELECTRONICS)), COUNTERMEASURES, CESIUM ELECTRON TUBES, DESIGN, ELECTRODES, ANODES(ELECTRON TUBES), TEST METHODS

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE