Mass and Mobility of Ions Produced by Radioactive Sources and Corona Discharges.

ABSTRACT: Positive and negative ions produced by radioactive sources and corona discharges in gases find a number of applications, including charging aerosol particles prior to their measurement by electrical and/or electrical mobility techniques. The degree to which these ions can charge aerosol particles depends on their mobility and mass; properties that are strongly affected by the composition of the carrier gas and the impurities that it contains. We show that when the purity of the carrier gas is increased, the mobility of both positive and negative ions increases by more than 50%, whereas the respective masses reduce by more than 50%. In most cases, the dominant positive species is N₄⁺, whereas NO₂^- and NO₃^- prevail for the neg

SUBMITTER: Schmidt-Ott F 

PROVIDER: S-EPMC11391406 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature