Abstract
Carbon-14 isotope separation technologies are important in various fields especially in the nuclear industry for radioactive waste treatment. Nowadays, laser isotope separation of carbon-14 based on photo-dissociation of formaldehyde molecule has become feasible. To develop this technology, spectral information of formaldehyde isotopologues is essential. We constructed a fluorescence spectroscopic setup including a tunable ultraviolet laser system to measure the carbon-14 formaldehyde spectrum. We also developed an evaporation process, involving self-enrichment of formaldehyde to obtain fluorescence signals using limited concentrations and amounts of samples. We demonstrate that the formaldehyde fluorescence spectra are in the 28,371–28,432 cm−1 wavelength region, and identify the individual 14CH2O peaks and estimate their absorption cross-sections.
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Acknowledgements
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. RS-2022-00155423).
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Kim, Y., Cha, Y., Lee, L. et al. High-resolution 352 nm range fluorescence spectra for carbon-14 formaldehyde. J. Korean Phys. Soc. (2024). https://doi.org/10.1007/s40042-024-01092-w
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DOI: https://doi.org/10.1007/s40042-024-01092-w