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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Fusion Science and Technology
Latest News
Sellafield awards $3.86B in infrastructure contracts to three companies
Sellafield Ltd., the site license company overseeing the decommissioning of the U.K.’s Sellafield nuclear site in Cumbria, England, announced the award of £2.9 billion (about $3.86 billion) in infrastructure support contracts to the companies of Morgan Sindall Infrastructure, Costain, and HOCHTIEF (UK) Construction.
Erzhong Li, H. Zhao, X. Liu, T. Zhou, Q. Cao, A. Ti, Y. Liu, L. Hu
Fusion Science and Technology | Volume 75 | Number 1 | January 2019 | Pages 67-74
Technical Paper | doi.org/10.1080/15361055.2018.1499394
Articles are hosted by Taylor and Francis Online.
This work is motivated by the measurement of electron dynamics during edge-localized modes (ELMs) which is observed as electron cyclotron emission (ECE) bursts at edge. Considering a small optical thickness for both background and energetic electrons at the edge, detailed physical design and analysis of the ECE spectrum have been done when energetic electrons are considered at edge as in this technical note. The assembly of a portable eight-channel heterodyne radiometer is based on the building-block idea to conveniently adjust radio frequency components to suit for tokamak toroidal fields. Tests were performed in the 2016 Fiscal Year Campaign of Experimental Advanced Superconducting Tokamak (EAST) for demonstrating the ability of the system. Specifically, the bursting ECE in combination with the calculated spectrums indicates that the energetic electrons survive in the pedestal region and shift outward during the growing phase of an ELM.