Optical detection of tracer gases in gas discharge cells with unexposed electrodes.

摘要

An optical detection device and a detection method for a tracer gas using a non-exposed electrode are provided. A tracer gas detection device includes a gas discharge cell having a cell wall defining a discharge volume space and a tracer gas inlet to the discharge volume space, and a first side of the discharge cell. The irradiation light source 26 that emits light into the discharge cell and the second side opposite to the first side of the discharge cell so as to pass through the discharge volume space 30 by the irradiation light source 26. An arrangement system of an optical spectrometer including an irradiation light detector 28 for detecting emitted irradiation light, and an electrode 32 for generating plasma in the discharge cell on both sides of the discharge cell, which are not exposed And an electrode 32 which is a plasma electrode. [Selection] Figure 1