Premium
Atomabsorption von Barium in Leuchtstofflampen
Author(s) -
Drawert S.,
Riemann M.,
Jordanov W.
Publication year - 1991
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150310411
Subject(s) - evaporation , materials science , barium , common emitter , cathode , radiator (engine cooling) , absorption (acoustics) , protein filament , electrode , fluorescence , cold cathode , optics , optoelectronics , composite material , chemistry , physics , metallurgy , thermodynamics
Evaporation of emitter material from electrodes of fluorescent lamps has been measured by means of atomic absorption of Ba. A hollow‐cathode discharge lamp served as background radiator. The arrangement is briefly described. Spot resolved measurements has been done in preheating and in discharge regimes. Essential results are dependence on evaporation rate and filament structure, evaporation and arising of cathode spot in discharge, and diminished evaporation regarding preheating.