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Fusion Science and Technology
November 2025
Latest News
Modernizing I&C for operations and maintenance, one phase at a time
The two reactors at Dominion Energy’s Surry plant are among the oldest in the U.S. nuclear fleet. Yet when the plant celebrated its 50th anniversary in 2023, staff could raise a toast to the future. Surry was one of the first plants to file a subsequent license renewal (SLR) application, and in May 2021, it became official: the plant was licensed to operate for a full 80 years, extending its reactors’ lifespans into 2052 and 2053.
(Prepared by P.L. Mondino, E. Bertolini)
Fusion Science and Technology | Volume 10 | Number 3 | November 1986 | Pages 1375-1385
Machine Upgrades and Next-Generation Device | doi.org/10.13182/FST86-A24922
Articles are hosted by Taylor and Francis Online.
Three years have passed since the Joint European Torus (JET) started operation in June 1983. Phase I of the scientific programme, devoted to ohmic heating studies, has been completed. Phase II, devoted to additional heating studies started in January 1985. From the technical point of view JET has been entirely successful: indeed the plasma current, an important figure of merit for a tokamak, has reached 5.1 MA for 3s, (exceeding the design value of 4.8 MA). Ion Cyclotron Resonance Heating has added up to 6 MW to the plasma and Neutral Beam Injection has added up to 10 MW. The energy confinement time in ohmic discharges has reached 0.8s; but degradation has been observed with additional heating. Recently, combined heating (Padd up to 14.5 MW) allowed achievement of ion and electron temperatures of −7.5 keV at densities of ∼3 − 1019 m−3. Several proposals for improvements of the JET scientific performance are reported in the paper and summarised in the new development programme.
