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physics.plasm-ph2026
Review of LHD-ECRH activities and beyond
Masaki Nishiura, Hiroe Igami, Hiromi Takahashi +11
The electron cyclotron resonance heating (ECRH) system on the Large Helical Device (LHD) played a key role in the progress of helical fusion research from the first plasma in 1998…
physics.plasm-ph2026
Overcoming the space-charge dilemma in low-energy heavy ion beams via a multistage acceleration lens system
M. Nishiura, T. Ido, M. Okamura +3
Low-energy heavy-ion beams are fundamentally limited by severe space-charge divergence, which constrains the transportable beam current to a few microamperes in conventional electr…