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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.
John F. Geldard, Adolph L. Beyerlein
Nuclear Technology | Volume 102 | Number 2 | May 1993 | Pages 252-258
Technical Paper | Enrichment and Reprocessing System | doi.org/10.13182/NT93-A34820
Articles are hosted by Taylor and Francis Online.
The mathematical basis for a new computer code, CUSEP-MOD1, is described. This new code allows the calculation of the temporal response of pulsed column contactors with sieve plates in which spent nuclear fuel is reprocessed using the Purex process. The CPU times needed for these calculations are shorter than those using the CUSEP code but longer than those using the PULSER code, these latter codes having been described previously. Although PULSER remains the faster code, it utilizes approximations that would make CUSEP-MOD1 the preferable code for many applications. The improved efficiency of CUSEP-MOD1 is based on an analysis of the correlation of the aqueous and organic flows in pulsed columns. The analysis shows that both phases move with positive correlation at zero lag time because of the magnitude of the impressed pulsed flow. The new code gives concentration profiles virtually identical to those of the CUSEP code and replaces CUSEP for calculation of the temporal and steady-state concentration profiles in pulsed column contactors. A comparison is made of the steady-state concentration profiles in an exemplary extraction (A-type) contactor calculated using CUSEP, CUSEP-MOD1, and PULSER.
