ISSN:
1573-0662
Keywords:
Absorption cross-section
;
Ly(α)
;
H2O
;
O2
;
trace gas detection
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Geosciences
Notes:
Abstract The absorption cross-sections of water vapor and oxygen were measured, using a low-pressure radio frequency discharge through traces of hydrogen in argon as a light source for Ly(α) radiation. The cross-sections are σH2O = 1.59 × 10−17 cm2 and σO2 = 1.13 × 10−20 + 1.72 × 10−23 for water and oxygen, respectively, where P is the oxygen pressure in units of Torr. Ly(α) lamps, such as used for this work, are important light sources for photochemical laboratory work and find applications for trace-gas detection in the atmosphere. For the latter application, accurate cross-sections of water vapor and oxygen are needed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00114132
