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Division Spotlight
Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Robin Größle, Alexander Kraus, Sebastian Mirz, Sebastian Wozniewski
Fusion Science and Technology | Volume 71 | Number 3 | April 2017 | Pages 369-374
Technical Paper | doi.org/10.1080/15361055.2017.1291237
Articles are hosted by Taylor and Francis Online.
Fusion facilities like ITER and DEMO will circulate several kilograms tritium and deuterium per day in their fuel cycle. For the separation of the hydrogen isotopologues the Isotope Separation System (ISS), based on cryogenic distillation, was developed at Tritium Laboratory Karlsruhe (TLK). One challenge is to find and develop an in situ and real time method to analyse the isotopologic composition of the column content. Calibration tests with IR absorption spectroscopy (FTIR) with chemically equilibrated samples have been performed at the Tritium absorption IR Spectroscopy Experiment (TApIR). From this previous work and from literature, it is known that the dependence between IR absorbance and the concentrations is non-linear. This makes it impossible to extrapolate the calibration from equilibrium to non-equilibrium samples. This work shows a full D2, H2, and HD calibration with samples in and off the high temperature. This enables us now to measure composition of inactive liquid hydrogen samples with an accuracy of better than 5%. In addition, one of the main challenges on the way to a calibration with tritiated mixtures is shown, the IR absorbance at molecular dimers, which tremendously increases the complexity of IR absorption spectra.