CARBON ISOTOPE ANALYSIS DEVICE AND CARBON ISOTOPE ANALYSIS METHOD

摘要

PROBLEM TO BE SOLVED: To provide a carbon isotope analysis device and a carbon isotope analysis method which are simple, easy to use and capable of performing aC analysis.SOLUTION: A carbon isotope analysis device 1 comprises: a carbon dioxide isotope generation device 40 which generates a carbon dioxide isotope from a carbon isotope; a spectral device 10 which has an optical resonator 11 provided with a pair of mirrors 12 and a light detector 15 to detect intensity of transmitted light from the optical resonator 11; and a light generation device 20 which has a light source 23, a first optical fiber 21 which transmits light from the light source 23, a second optical fiber 22 which is installed for wavelength conversion and diverges from the first optical fiber 21 and joins the same at a junction downstream of the first optical fiber 21, and a non-linear optical crystal 25 which generates light with a wavelength of carbon dioxide isotope absorption using a difference in frequency by making a plurality of light beams having different frequencies transmit therethrough.SELECTED DRAWING: Figure 1