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April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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Fusion Science and Technology
Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
M. Matsukawa, H. Ninomiya, H. Horiike, N. Hosogane, R. Yoshino
Fusion Science and Technology | Volume 21 | Number 3 | May 1992 | Pages 1624-1629
Plasma Engineering | doi.org/10.13182/FST92-A29952
Articles are hosted by Taylor and Francis Online.
This paper describes the design modifications to the plasma feedback control system, including power supply, for the Upgrade of JT-60. One of the major design issues was to be able to change the kind of control command for the thyristor converter from voltage to current and vice versa at any time during the discharge. Another one was to adopt a faster control system with 250µs response for stabilization of plasma vertical position, even in plasmas with high elongation of 1.8. These modifications improved the plasma controllability especially at initiation and made protecting the poloidal field coil system easier when the plasma disrupts. The high flexibility of the control system led to the achievement of a 4MA plasma after only 2 weeks of JT-60U operation.
