Characterization of a compact electron cyclotron resonance plasma source under negative DC biasing and microwave plasma cathode operation

February 2026 | Y. Shimabukuro | Plasma Sources Science and Technology | Paper

To realize future long-lifetime negative hydrogen ion sources, two approaches were investigated using a compact coaxial ECR plasma source: direct negative DC biasing and a microwave plasma cathode (MPC) configuration. In noble gases such as argon, …

Advanced Beam-Driven Field-Reversed Configurations for Aneutronic Fusion

November 2025 | H. Gota | CWFEST 2025 | Presentation

TAE’s goal: p-11B aneutronic fusion Reactivity of p-11B has been reassessed
– Cross section larger than previously believed.
– Kinetic effects can further increase reactivity
– Net effect leads to ~30% increase of the fusion yield for the same…

Increased p-11B fusion reaction rate through fast-ion acceleration by ICRF heating in LHD

November 2025 | S. Kamio | 2025 US-Japan FRC Workshop | Presentation

ICRF heating in LHD clearly accelerates fast ions and enhances p-¹¹B fusion yield. In the FRC device C-2W, fast-ion acceleration is also observed together with beam-driven modes. The n = 2 mode can accelerate NB-injected ions to nearly twice their initial energy…

Overview of Beam Driven FRCs at TAE

November 2025 | S. Dettrick | 2025 US-Japan FRC Workshop | Presentation

Non-inductive start-up, ramp-up, and sustainment of FRC using neutral beams. Experimental validation of Improved Tilt Stability with Neutral Beams. Neutral
Beams can drive Energetic Particle Modes in Steady State FRC. Electrode biasing improves MHD…

Study of the fast-ion acceleration due to the beam-driven modes in C-2W

November 2025 | S. Kamio | APS DPP 2025 | Poster

In C-2U experiments, thermal ion acceleration by a beam-driven wave was observed [R. M. Magee et al. Nat. Phys. 15, 281–286 (2019)]. This thermal ion acceleration is pointed out to dramatically enhance the fusion rate because the beam energy is transferred to thermal ions, bypassing the electron channel…