With conventional dielectric barrier discharge, a needle-shaped microplasma discharge occurs at 10 kHz operation, which results in uneven illumination. By contrast, high-frequency RF discharge produces a cloudlike glow discharge at 2 MHz operation, which results in highly uniform illumination. This feature enables the excimer lamp to provide stable output with minimal flickering.
These are the next generation of deuterium lamps that deliver the high stability, high output and long service life required in deuterium lamps for spectrophotometry.
The photoionization light sources that emit light with energy up to 10.78 eV. Photoionization is so-called soft ionization that offers advantages over other ionization methods.