The Mechanism of Detection of Air Pollution by an Ionization Chamber
作者:
D. Novković,
I. Vukanac,
Z. Milošević,
期刊:
Isotopes in Environmental and Health Studies
(Taylor Available online 2000)
卷期:
Volume 36,
issue 3
页码: 241-254
ISSN:1025-6016
年代: 2000
DOI:10.1080/10256010008036384
出版商: Taylor & Francis Group
关键词: Air pollution;Detection;Ionization chamber;Theory
数据来源: Taylor
摘要:
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: aconductive component, caused by the ions drifts, and acapacitive 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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