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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.
Akira Endoh, Masayoshi Watanabe, Shuntaro Watanabe
Fusion Science and Technology | Volume 11 | Number 3 | May 1987 | Pages 492-496
Technical Paper | KrF Laser | doi.org/10.13182/FST87-A25031
Articles are hosted by Taylor and Francis Online.
Two modules of a low impedance electron-beam (e-beam) machine were developed to pump a 200-J, 70-ns KrF laser from both sides. The laser was designed as the power amplifier of a picosecond, terawatt excimer laser system, which will be applied to a basic physical research on extreme ultraviolet lasers. Each driving circuit of the e-beam diode was a 2.8.-Ω double parallel plate Blumlein with a 500-kV rail gap as the main switch. The energy deposited in the 42-ℓ laser gain region was measured by several diagnostics to determine the energy transfer efficiency and the spatial uniformity of energy deposition with the guide magnetic field of 1 kG. The triggered operation of 500-kV rail gaps, which is essential for amplifier system synchronization, was realized by the ultraviolet laser irradiation along the rail-gap axis with reduced switching time and jitter of 20 and 1.9 ns, respectively.
