20206-08-03 東京大学,核融合科学研究所
磁気浮上ダイポール実験装置RT-1（Ring Trap 1）で生成したプラズマ
＜関連情報＞
- https://www.k.u-tokyo.ac.jp/information/category/press/0030345.html
- https://iopscience.iop.org/article/10.1088/1741-4326/ae855d
双極子磁場配置の端部領域における低周波電気変動によって引き起こされる内向き粒子束 Inward particle flux caused by low-frequency electric fluctuations in the edge region of dipole magnetic field configuration
H. Saitoh, H. Mimura, S. Aoyagi, N. Shirokoshi, K. Ueda, M. Nishiura, N. Kenmochi, N. Sato and Z. Yoshida
Nuclear Fusion Published: 30 July 2026
DOI:10.1088/1741-4326/ae855d
Abstract
We report experimental evidence of inward particle transport associated with low frequency fluctuations in the levitated dipole device RT-1. During the occurrence of the low frequency fluctuations that accompany the formation of peaked high- β structures in the dipole magnetic field, multi-point measurements with electrostatic probes detected electric field fluctuations with a toroidal component. Simultaneous measurements of electron density and electric field fluctuations show that these fluctuations drive a steady inward particle flux toward the strong magnetic field side.
