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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.
Yoshiyuki Inagaki, Hirofumi Ohashi, Yoshitomo Inaba, Hiroyuki Sato, Tetsuo Nishihara, Tetsuaki Takeda, Koji Hayashi, Masuro Ogawa
Nuclear Technology | Volume 157 | Number 2 | February 2007 | Pages 111-119
Technical Paper | Fission Reactors | doi.org/10.13182/NT07-A3806
Articles are hosted by Taylor and Francis Online.
The Japan Atomic Energy Agency (JAEA) has been promoting research and development on the hydrogen production technology with a high-temperature gas-cooled reactor (HTGR), with a view to contributing to the global warming issue and hydrogen energy society in the near future. The system integration technology for connection of the hydrogen production system to the HTGR is one of the key technologies to put hydrogen production with nuclear energy to commercial use. Research and development on the system integration technology has been carried out for four items: control technology to maintain reactor operation against thermal disturbance caused by the hydrogen production system, estimation of the tritium permeation into the hydrogen from the reactor, a countermeasure against explosion, and development of a high-temperature valve to isolate the reactor and hydrogen production systems in accidents. This report describes the research activities on the system integration technology at JAEA.
