Energy- and pitch-angle-resolved fast ion loss measurement optimized for a beam-driven field-reversed configuration plasma

June 2026 | S. Ohshima | HTPD 2026 | Poster

A new Fast Ion Loss Detector optimized for beam-driven FRC plasmas has been commissioned on C-2W, revealing catastrophic fast-ion transport across all energy and pitch-angle ranges during disruptions, with lower-energy ions exhibiting delayed response times.

High-Speed Camera-Based FIDA Measurements in an FRC Plasma on the C-2W Device

June 2026 | Y. Fujiwara | HTPD 2026 | Poster

We report the first use of the Hamamatsu ORCA-Quest 2 camera for FIDA measurements on C-2W, achieving ~1000× greater signal intensity and 4.2× finer wavelength resolution. Spatially resolved fast-ion profiles reveal a sharp density increase near the separatrix, consistent with orbit-following…

Observation of Fast-Ion Axial Bounce Mode Using Dual Neutral Particle Analyzers in C-2W

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…

Overview of C-2W Diagnostic and Experimental Systems Supporting Beam-Driven FRC Plasmas at TAE Technologies

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 …

Rapid damping of magnetic turbulence induced by collisional merging process of field-reversed configurations

May 2026 | D. Kobayashi (Nihon Univ.) | Nuclear Fusion | Paper

The damping process of magnetic turbulence induced by the collisional merging of field-reversed configurations (FRCs) was investigated using the FAT-CM device at Nihon University. Two FRC-like plasmoids collided at super-Alfvénic and supersonic speeds.

Increased p-11B fusion reaction rate through fast-ion acceleration by ion cyclotron range of frequencies heating in LHD

February 2026 | S. Kamio | Nuclear Fusion | Paper

Among various advanced fuel cycles, proton-boron-11 (p-11B) fusion has attracted renewed interest as a potentially clean and sustainable fusion energy source.
This aneutronic fusion concept has long been envisioned as an ultimate cleaner fusion reactor scheme…