Article

The Mechanism of Detection of Air Pollution by an Ionization Chamber

D. NovkovićInstitute for Nuclear Sciences Vinca, Laboratory for Nuclear and Plasma Physics, Belgrade, YugoslaviaIvana VukanacŽ. Milošević

Isotopes in Environmental and Health Studiesjournal2000en

ABI

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.

Topics

Chemical Safety and Risk Management Air Quality Monitoring and Forecasting Radioactive Decay and Measurement Techniques

Identifiers

DOI: 10.1080/10256010008036384

Citations and references

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