English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Spatial variations of the relative excitation rates for two electronic states of molecular nitrogen have been measured for a point source Townsend discharge. The ratio of these rates shows a spatial dependence which is explained in terms of an electron con,centration gradient expansion of the energy distribution function. The electronic states were chosen to have quite different thre hold energies such that the ratio would be sensitive to small changes in the electron energy distribution. A model for secondary electron production is used to explain the significant influence of secondary   ectrons in the outer regions of the discharge.

Observation of Spatial Variations in the Energy Distribution Function for Steady-state Townsend Discharges