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ANS Student Conference 2025
April 3–5, 2025
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Latest News
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.
M. Ichimura et al.
Fusion Science and Technology | Volume 47 | Number 1 | January 2005 | Pages 104-107
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST05-A617
Articles are hosted by Taylor and Francis Online.
The high ion-temperature (> 10 keV) plasma has been performed in ion-cyclotron range of frequency (ICRF) heating experiments on the GAMMA 10 tandem mirror. In such a high performance plasma, low frequency density fluctuations are observed in relation to the applied ICRF powers. A drift-type fluctuation, that is excited when high power ICRFs for the plasma production are applied, is observed in the whole of GAMMA 10 with the finite wave length. The amplitude of the drift-type fluctuation depends strongly on the gas puffing rate, the ICRF antenna configuration and so on. The radial transport of high energy ions due to these fluctuations is studied.
