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Macroscopic enrichment of12C by a high-power mechanically Q-switched CO2 laser

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Abstract

The isotope-selective multiphoton dissociation of CHClF2 in a multipass refocusing Herriott cell was used to enrich more than 4 moles of chlorodifluoromethane to 99.99% of12C isotopic purity. It is the largest isotope quantity ever separated by a laser process. A cw excited mechanically Q-switched CO2 laser, which delivers 16 mJ pulses at 5 kHz was used. The enrichment controlled by a mass-spectrometer and guided by a PC was run with a rate of 25 g12C per 24 h.

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Göthel, J., Ivanenko, M., Hering, P. et al. Macroscopic enrichment of12C by a high-power mechanically Q-switched CO2 laser. Appl. Phys. B 62, 329–332 (1996). https://doi.org/10.1007/BF01081193

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  • DOI: https://doi.org/10.1007/BF01081193

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