Zellner, R.; Haegele, J.:
A double-beam UV-laser differential absorption method for monitoring tropospheric trace gases.
1985
In: Optics & Laser Technology, Jg. 17 (1985), Heft 2, S. 79 - 82
Artikel/Aufsatz in Zeitschrift1985Chemie
Titel:
A double-beam UV-laser differential absorption method for monitoring tropospheric trace gases.
Autor(in):
Zellner, R.LSF; Haegele, J.
Erscheinungsjahr
1985
Erschienen in:
Titel:
Optics & Laser Technology
in:
Jg. 17 (1985), Heft 2, S. 79 - 82
ISSN:

Abstract:

The method described uses differential absorption of a narrow-band tunable UV laser for detn. of trace gas concns. over a path length of 12.8 km, at near-ground level. A XeCl excimer laser serves as a ref. beam to compensate for turbulence-induced intensity losses. After suitable statistical averaging the method is capable of detecting differential absorptions as low as 10-4, allowing simultaneous detection of SO2, CH2O, and OH radicals at l .apprx.308 nm.