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Updated: Oct 5, 2026

Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry
Published on: June 14, 2018
The mechanism of detection of air pollution by an ionization chamber
D Novković1, Vukanac, Z Milosević
1Institute for Nuclear Sciences Vinca, Laboratory for Nuclear and Plasma Physics, Belgrade, Yugoslavia.
Abstract:
The mechanism of detection of chemical vapors in air by an ionization chamber supplied by DC and AC voltage has been described. The theoretical explanation is based on numerical solutions of the differential equations of the cylindrical ionization chamber. The current of the ionization chamber operating in the AC regime has two components: a conductive component, caused by the ions drifts, and a capacitive component, caused by the distortion of the electric field. The ionization chamber operating in the DC regime has only the first component; hence the AC supplied chamber has larger response than the DC supplied chamber.
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