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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.
Tsutomu Shimada, Tetsuya Mori, Minoru Itagaki, Kei-ichiro Sugita, Eiki Oikawa, Teruyuki Sato
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 306-309
Reversed Field Pinch Studies | doi.org/10.13182/FST95-A11947093
Articles are hosted by Taylor and Francis Online.
Reversed field pinch experiments have been performed by using a small size device, which is characterized a high aspect ratio and high current density. The RFP configuration has been achieved as follows; the duration is about 0.3 ms, the plasma current is 25 kA that corresponds to the average current density exceeds 4 MA/m2, and the loop voltage is about 40 V. In the plasma, we have observed asymmetry in the radial profile of the magnetic field and dynamic behavior of the RFP plasma disruption. From the relation between the toroidal magnetic flux and the plasma current, the effective inductance is obtained and compared with the theoretical value.
