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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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Colin Judge: Testing structural materials in Idaho’s newest hot cell facility
Idaho National Laboratory’s newest facility—the Sample Preparation Laboratory (SPL)—sits across the road from the Hot Fuel Examination Facility (HFEF), which started operating in 1975. SPL will host the first new hot cells at INL’s Materials and Fuels Complex (MFC) in 50 years, giving INL researchers and partners new flexibility to test the structural properties of irradiated materials fresh from the Advanced Test Reactor (ATR) or from a partner’s facility.
Materials meant to withstand extreme conditions in fission or fusion power plants must be tested under similar conditions and pushed past their breaking points so performance and limitations can be understood and improved. Once irradiated, materials samples can be cut down to size in SPL and packaged for testing in other facilities at INL or other national laboratories, commercial labs, or universities. But they can also be subjected to extreme thermal or corrosive conditions and mechanical testing right in SPL, explains Colin Judge, who, as INL’s division director for nuclear materials performance, oversees SPL and other facilities at the MFC.
SPL won’t go “hot” until January 2026, but Judge spoke with NN staff writer Susan Gallier about its capabilities as his team was moving instruments into the new facility.
Masahiro Nabeshima
Nuclear Technology | Volume 95 | Number 2 | August 1991 | Pages 207-218
Technical Paper | Environment and Reprocessing System | doi.org/10.13182/NT91-A34557
Articles are hosted by Taylor and Francis Online.
Experimental data acquired from cylindrical and annular pulsed columns equipped with either conventional sieves or baffle plates are well reproduced by the DYNAC computer model during steady-state and transient operation, even under off-normal conditions. This confirms that the model is useful in the design of pulsed columns with various geometries as well as in the estimation of extractor performance. The inherent differences between pulsed columns and mixer-settlers are also discussed for the plutonium separation process. Intrastage liquid mixing causes marked hydrodynamic tailing of solutes because of the difference in the mixing mechanisms and the residence time distributions of the fluids.
