June 2026 | S. Kamio | HTPD 2026 | Poster
We report direct experimental observation of the fast-ion axial bounce mode (ABM) in C-2W FRC plasmas using dual opposing Neutral Particle Analyzers. Antiphase fast-ion flux oscillations, energy-dependent time-of-flight delays, and multi-energy responses confirm the ABM model…
June 2026 | M. Nations | HTPD 2026 | Poster
We present diagnostic systems supporting beam-driven FRC plasmas on C-2W at TAE Technologies, achieving sustained steady-state operation up to 40 ms. Key systems include FIDA, CHERS, Lyman-alpha neutral detection, and a new Fast-Ion Loss Detector, establishing the foundation …
May 2026 | S. Karbashewski | Physical Review Letters | Paper
We report observations of an energetic-particle mode (EPM) in a linear plasma device that corresponds to an axial bounce resonance of fast ions sourced from neutral-beam injection (NBI). In our experiment, novel dynamic shaping of a magnetic mirror field reduces the distance …
November 2025 | J. Wood | 2025 US-Japan FRC Workshop | Presentation
Characterizing neutral particles is essential for understanding fueling, confinement, and fast-ion behavior in C-2W’s magnetically confined FRCs.
A dedicated Lyman-⍺ diagnostic has been installed on C-2W
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…