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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Latest News
TVA and Entra1 to deploy 6 GW of NuScale SMRs
The Tennessee Valley Authority and Houston, Texas–based energy production company Entra1 Energy recently announced the signing of an agreement to collaborate on the deployment of six new nuclear power plants equipped with NuScale small modular reactors.
Bennet Krasch, Robin Größle, Daniel Kuntz, Sebastian Mirz
Fusion Science and Technology | Volume 76 | Number 4 | May 2020 | Pages 481-487
Technical Paper | doi.org/10.1080/15361055.2020.1718841
Articles are hosted by Taylor and Francis Online.
A crucial part of the closed fuel cycle of future fusion power plants will be isotope separation, which takes place in a cryogenic distillation refraction column, where all six hydrogen isotopologues are separated due to their different vapor pressures at a given temperature. For monitoring and process controlling, the Tritium Laboratory Karlsruhe has investigated liquid hydrogen by infrared (IR) absorption spectroscopy and presented the first successful calibration for the inactive isotopologues. Now, the new Tritium Absorption InfraRed Spectroscopy 2 (T2ApIR) experiment, which is fully tritium compatible, is under construction and aims to provide a calibration for concentration measurements of all six hydrogen isotopologues in solid, liquid, and gaseous phases via not only IR absorption but also Raman spectroscopy. One major challenge of the new experiment so far has been the design of the cryostat, which had to fulfill diverse technical and safety requirements regarding tritium compatibility, cryogenics, and overpressure and the combination of optical components for Raman and IR spectroscopy.