Category: US Hardware

R&D engineer and pellet injection scientist Trey Gebhart of the Blanket and Fuel Cycle group in ORNL’s Fusion Energy Division with a pellet injection system testbed used for fusion R&D. The group leads the world in pellet injection R&D.

Perfecting the Pellet


A team of experts at Oak Ridge National Laboratory is taking aim at one of the biggest challenges facing the international ITER fusion facility: turning cold gas into wine-cork-sized, solid pellets to help keep ITER’s plasma in check.

prototype transmission line assembly

US ITER ready for high-power microwave transmission line fabrication after completing final design


After several years of design analysis, prototyping and strict attention to complex structural demands, the US ITER electron cyclotron heating line team completed a final design review of transmission lines for the microwave plasma heating system. The team is now preparing for initial fabrication contracts.  “Our thermal mechanical analysis at the system and component level […]

The KSTAR superconducting tokamak in Daejeon, South Korea before installation of the two shattered pellet injectors.

KSTAR joins an exclusive club: Tandem shattered pellet injectors now in testing for disruption mitigation


–Adriana Ghiozzi for US ITER First-of-a-kind experiments have begun at the KSTAR tokamak in Daejeon, South Korea, where two new shattered pellet injectors were installed in October and December. The tandem use of shattered pellet injectors installed at opposite sides of the machine is a first for the technology, which was developed and fabricated at […]

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