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This article is cited in 1 scientific paper (total in 1 paper)
Interaction of laser radiation with matter
Efficient two-stage laser enrichment up to 99% of carbon-13 isotope by IR multiphoton dissociation of Freon molecules
V. B. Laptev, S. V. Pigul'skii Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow
Abstract:
A new method for two-stage laser enrichment of carbon-13 (13C) by isotope-selective IR multiphoton dissociation of Freon molecules is considered, which makes it possible to achieve a concentration of 13C up to 99% or higher with high productivity. At the first stage, as a result of the selective dissociation of CF2HCl (Freon-22) molecules, it is expected to obtain a C2F4 dissociation product enriched in 13C up to 30 % – 50%. At the second stage, CF2Br2 (Freon-12B2) is proposed to be used as a working substance, which is synthesised from enriched C2F4, and the enrichment process is carried out by selective deep 'burning-out' of the 12C-containing component. Experiments on multiphoton dissociation of Freon-12B2 with an initial 13CF2Br2 concentration of 30% in a mixture with oxygen by pulsed CO2 laser radiation are performed. It is shown that reaching a 13CF2Br2 concentration of no lower than 99% is possible at high values of the elementary separation act parameters: 15% – 18% dissociation yield and 40 – 75 selectivity for 12CF2Br2 molecules.
Keywords:
carbon-13, laser enrichment, 13C-enriched Freon-12B2, selective 'burning-out' of a 12C-containing component.
Received: 29.11.2021 Accepted: 29.11.2021
Citation:
V. B. Laptev, S. V. Pigul'skii, “Efficient two-stage laser enrichment up to 99% of carbon-13 isotope by IR multiphoton dissociation of Freon molecules”, Kvantovaya Elektronika, 52:4 (2022), 371–375 [Quantum Electron., 52:4 (2022), 371–375]
Linking options:
https://www.mathnet.ru/eng/qe18025 https://www.mathnet.ru/eng/qe/v52/i4/p371
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Abstract page: | 57 | Full-text PDF : | 11 | References: | 19 | First page: | 8 |
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