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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.
Xiang M. Chen, Virgil E. Schrock, Per F. Peterson
Fusion Science and Technology | Volume 21 | Number 3 | May 1992 | Pages 1536-1540
Inertial Fusion Reactor Studies | doi.org/10.13182/FST92-A29938
Articles are hosted by Taylor and Francis Online.
In the HYLIFE inertial confinement fusion reactor, fusion occurs in pulses several times every second, x rays ablate material from the array of molten 2LiF-BeF2 salt (Flibe-Li2BeF4) jets used to protect the reactor vessel, generating a hot, dissociated and partially ionized vapor. Further evaporation of the blanket material occurs as the vapor radiates to the jets. Eventually this vapor must be condensed to restore sufficient vacuum for the next shot. The rate of condensation determines the permissible fusion repetition rate. With extensive dissociation, the chemical composition in the reactor will be complicated. A good understanding of the chemical kinetics is essential for the calculation of the composition and, therefore, for the accurate calculation of the vapor condensation rate. Analysis presented here shows that recombination rates will be fast compared to fluid dynamic and condensation time scales for a major portion of the condensation process, making it possible to assume quasi-equilibrium in the vapor phase.
