Highlights from the 2020 Workshop on Accelerated Irradiation for Reactor Structural Materials

Idaho National Laboratory held a workshop in September 2020 to provide a snapshot look at current international, in-reactor testing and irradiation capabilities. Gaps were identified, and mitigation strategies and recommendations were discussed. As new material innovations are being developed for in-reactor applications for reactor life extension long-term operation, and advanced reactor technologies, there is an increased need for materials qualification and assessment programs. In-reactor testing capabilities are vital to the on-going success of these DOE-NE programs and initiatives. Beyond performing simple irradiations in test reactors, few facilities exist internationally which can perform instrumented, in-situ irradiations on structural materials, and with the recent shut down of facilities hosted at Halden and NRU (example: instrumented fatigue loop, and in-situ creep), there are further gaps in the industry left unfilled. A new focus is being placed on the use of accelerator-based technologies to fill in some of these gaps, but these must be viewed as supplemental, and not surrogates to in-reactor capabilities.

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