This article describes a new design for a high-intensity lamp that can be used in atomic absorption spectrometers. The lamp has a special filament material and design that increases its light output, which in turn increases sensitivity.
The document describes a new lamp design called UltrAA intended to increase emission intensity without broadening the emission line. Unlike electrodeless discharge lamps (EDL), which require complex external power supplies, the UltrAA design integrates an electron source and secondary anode into the lamp structure. This allows for fixed boosting current and full instrument control over lamp operation.
They are difficult to stabilize, require long warm up times, need manually optimized lamp current, and require a complex external power supply.
The UltrAA design includes an electron source and a secondary anode in addition to the standard anode and cathode, separating the sputtering process from the excitation process.