What type of study is this?

September 10, 2025High VoltageOpen Access

Investigating Spatial‐Temporal Optical Emission Spectroscopy of Unstable Positive Leaders in Long Sparks Under Atmospheric Pressure

View Full Paper

Ask AI

Bookmark

Authors

This study demonstrates how emission spectra reveal reaction pathways in positive leaders, suggesting new insights into air gap discharges.

The emission spectra reveal significant ultraviolet and visible spectral lines from excited species in positive leaders.
Excited states of O II and N II were observed within 1.5 µs after leader inception, with O II's lifetime being shorter.
A chemical reaction model predicts the generation of reactive nitrogen and oxygen species at extremely high temperatures.
These findings may challenge traditional models by suggesting a higher electron density generated than previously expected.

He et al. (2025) studied this question.

View Full Paper

Ask AI

Bookmark

This study demonstrates how emission spectra reveal reaction pathways in positive leaders, suggesting new insights into air gap discharges.