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 […]

A 61,000 gallon drain tank, part of the US-provided tokamak cooling water system, is lifted into the tokamak complex for installation in the basement.

First US Components Installed in Tokamak Complex


Three drain tanks were the first  US-supplied components installed in the ITER tokamak complex this past weekend. Two more US-provided drain tanks will be installed later in the construction sequence. The drain tanks are part of the tokamak cooling water system, which will serve as the primary cooling system for the ITER machine. During operation, the […]

A silicon carbide disc machined with a pyramid pattern (left) is heated to well over 800° C (right) as part of electron cyclotron emission calibration testing at the University of Texas at Austin.

Fusion diagnostics heat up across the US


Teams are developing tools to monitor and control ITER plasma ―Lynne Degitz  ITER, the world’s largest tokamak now under construction in France, will have over 60 diagnostic systems installed to enable plasma control, optimize plasma performance, and support machine protection¬. Princeton Plasma Physics Laboratory and Oak Ridge National Laboratory, in collaboration with industry and universities, […]

A partial view of the General Atomics module fabrication line, with two winding station tables visible behind a yellow rail. Photo: GA

Building the heartbeat of ITER: Preparing a unique fabrication line for the central solenoid modules


―Lynne Degitz  With winding of the first production module for ITER’s central solenoid well underway, US ITER and its contractor, General Atomics, are now commissioning all of the necessary tooling stations for the 13 Tesla 1,000 metric ton electromagnet. Eleven unique stations will form the module manufacturing line at the GA Magnet Technologies Center, a […]

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