抄録
Sulfur dioxide is one of the many trace gases present in the atmosphere. The photodissociation reaction by UV light initiates a complicated oxidation process which its final product sulfates and sulfuric acid form aerosols. Since the measurement of absolute absorption cross sections of isotopologues is a complicated task a dual beam spectrometer (DBS) was designed and built for the purpose of measuring ratio of absorption cross-sections of the isotopologues: 32SO2, 33SO2, 34SO2 and 36SO2 with high precision.
