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Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
2023 ANS Annual Meeting
June 11–14, 2023
Indianapolis, IN|Marriott Indianapolis Downtown
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Nuclear Science and Engineering
Fusion Science and Technology
Battelle’s Mark Peters honored with Henry De Wolf Smyth Nuclear Statesman award
At the Nuclear Energy Institute’s Nuclear Energy Assembly, held this year in Washington, D.C., the Henry DeWolf Smyth Nuclear Statesman Award was presented on May 17 to Mark Peters, Battelle’s executive vice president for national laboratory management and operations.
J. L. Rempe, D. L. Knudson, K. G. Condie, S. Curtis Wilkins
Nuclear Technology | Volume 156 | Number 3 | December 2006 | Pages 320-331
Technical Paper | Radiation Measurements and Instrumentation | doi.org/10.13182/NT06-A3794
Articles are hosted by Taylor and Francis Online.
Traditional methods for measuring in-pile temperatures degrade above 1100°C. Hence, the Idaho National Laboratory (INL) initiated a project to explore the use of specialized thermocouples for high temperature in-pile applications. Efforts to develop, fabricate, and evaluate specialized high-temperature thermocouples for in-pile applications suggest that several material combinations are viable. Tests show that several low-neutron cross-section candidate materials resist material interactions and remain ductile at high temperatures. In addition, results indicate that the candidate thermoelements have a thermoelectric response that is single-valued and repeatable with acceptable resolution. The selection of the thermocouple materials depends on desired peak temperature and accuracy requirements. For applications at or above 1600°C, tests indicate that thermocouples having doped molybdenum and Nb-1%Zr thermoelement wires, HfO2 insulation, and a Nb-1%Zr sheath could be used.INL has worked to optimize this thermocouple's stability. With appropriate heat treatment and fabrication approaches, results indicate that thermal cycling effects on this thermocouple's calibration is minimized. INL initiated a series of high-temperature (1200 to 1800°C) long-duration (up to 6 months) tests to assess the long-term stability of these thermocouples. Initial results indicate that the INL-developed thermocouple's thermoelectric response is very stable. Typically, <20°C drift was observed in a 4000-h test at 1200°C. In comparison, commercially available types K and N thermocouples included in these 1200°C tests experienced drifts up to 110°C.