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Department of Plasma Physics and Fusion Engineering at the University of Science and Technology of China Proposes New Three-Dimensional Magnetic Field Configuration for Stellarators

Stellarators confine high-temperature plasma using three-dimensional magnetic fields generated by external coils, enabling steady-state operation without relying on plasma current and avoiding instabilities such as disruptions, making them the fastest-growing technological route globally. However, if the three-dimensional magnetic field is not carefully optimized, trapped particles can experience significant radial drift, leading to a substantial increase in neoclassical transport losses. To suppress this drift, the magnetic field must satisfy the "omnigenity" condition, meaning that the time-averaged radial drift of all trapped particle orbits is zero. The most widely applied class of omnigenous magnetic fields is poloidal omnigenity (PO), and such configurations are also commonly referred to as quasi-isodynamic (QI) configurations...

2026-08-06

Oak Ridge National Laboratory Licenses Cryogenic Fuel Pellet Technology to Type One Energy

The U.S. Department of Energy's Oak Ridge National Laboratory (ORNL) has licensed a suite of cryogenic fuel pellet injection technologies to Type One Energy to advance fuel supply capabilities needed for high-performance fusion plasma operations. The two parties signed the licensing agreement on August 5 in Knoxville, Tennessee, USA. The license covers four ORNL inventions, primarily related to the design and operation of cryogenic fuel pellet injection systems. The technology forms solid hydrogen isotope fuel pellets at cryogenic temperatures near absolute zero and injects them into fusion plasma at high speeds. Compared with methods such as gas injection, pellet injection is more effective at delivering fuel deeper into the plasma...

2026-08-06

BlueStar Fusion Completes "Angel+" Round Financing, High-Temperature Superconducting Stellarator Project Moves to Engineering Implementation Phase

Recently, Hefei BlueStar Fusion Technology Co., Ltd. (BlueStar Fusion, hereinafter referred to as "BlueStar Fusion") completed an Angel+ round of financing on the scale of several hundred million RMB, with a post-investment valuation exceeding 3 billion RMB. Following the completion of this financing round, the company will continue to advance the verification of key components, engineering manufacturing, and full-system integration of the high-temperature superconducting stellarator, with the goal of initiating the construction of the Phase I high-temperature superconducting stellarator system by 2027. BlueStar Fusion was established in August 2025 and is primarily engaged in the R&D and engineering of high-temperature superconducting stellarator technology. The company has assembled a professional team of nearly 100 members, covering fusion physics, superconducting magnets, structures and precision manufacturing, cryogenic engineering, artificial intelligence, and other disciplines. Ex...

2026-08-04

IAEA Launches New Project to Advance Research Network on Small and Medium-Sized Fusion Devices

The International Atomic Energy Agency recently launched a new Coordinated Research Project, aiming to further strengthen the global network of small and medium-sized fusion devices, supporting multinational coordinated experiments, diagnostic technology development, and personnel training, providing a platform for cultivating the next generation of fusion researchers. The Tokamak TT-1 device at the Thailand Institute of Nuclear Technology (TINT) has long participated in the IAEA Coordinated Research Project on the network of small and medium-sized fusion devices, contributing to international cooperation, research, and capacity building. (Photo: JP Cayol/IAEA) This project builds upon a previous five-year collaborative research program. The previous project was named Small and Medium-Sized Magnetic Confinement...

2026-07-30