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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.
Won Ha Ko, Kazuhisa Hagisawa, Byung Chul Kim, Myeun Kwon, Duck Kyu Park
Fusion Science and Technology | Volume 43 | Number 1 | January 2003 | Pages 268-270
Diagnostics | doi.org/10.13182/FST03-A11963610
Articles are hosted by Taylor and Francis Online.
Ion cyclotron resonant heating (ICRH) experiments have been carried out on the central cell of the HANBIT magnetic mirror. In these experiments were tested startup, heating, electrostatic ion confinement and electric potential modification which makes use of the electron cyclotron resonant heating (ECRH).
The ions heated by the wave are generally either reflected near magnetic field or are eventually disappeared into the loss cone. The small Faraday cup is used to measure the ions heated by the RF wave. End loss analyzers, types of electrostatic potential multi-grid Faraday cup have been used to measure the current and the axial energy distribution of ions escaping along magnetic field lines in the magnetic mirror machine. The change of the end loss ion current was shown to be consistent with the measured changes in the plasma potential when the ECRH occurred at the Plug region.
