Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 91, Issue 8, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.5140463
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Funding
- Molten Salts in Extreme Environments Energy Frontier Research Center - U.S. Department of Energy (US-DOE), Office of Science, Basic Energy Science, at BNL [DE-SC0012704]
- Molten Salts in Extreme Environments Energy Frontier Research Center - U.S. Department of Energy (US-DOE), Office of Science, Basic Energy Science, at INL [DE-AC07-05ID14517]
- Molten Salts in Extreme Environments Energy Frontier Research Center - U.S. Department of Energy (US-DOE), Office of Science, Basic Energy Science, at Notre Dame
- Laboratory Directed Research and Development (LDRD) Program under DOE Idaho Operations Office [DE-AC07-05ID14517]
- LDRD (INL) [204471, AWD-01-00001719]
- U.S. DOE Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences [DE-SC0012704]
- U.S. DOE, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences [DE-FC02-04ER15533]
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To facilitate the development of molten salt reactor technologies, a fundamental understanding of the physical and chemical properties of molten salts under the combined conditions of high temperature and intense radiation fields is necessary. Optical spectroscopic (UV-Vis-near IR) and electrochemical techniques are powerful analytical tools to probe molecular structure, speciation, thermodynamics, and kinetics of solution dynamics. Here, we report the design and fabrication of three custom-made apparatus: (i) a multi-port spectroelectrochemical furnace equipped with optical spectroscopic and electrochemical instrumentation, (ii) a high-temperature cell holder for time-resolved optical detection of radiolytic transients in molten salts, and (iii) a miniaturized spectroscopy furnace for the investigation of steady-state electron beam effects on molten salt speciation and composition by optical spectroscopy. Initial results obtained with the spectroelectrochemical furnace (i) and high-temperature cell holder (ii) are reported.
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