Compatibility of pronounced detachment with improved confinement on HL-2A tokamak
Abstrak
This paper investigates the compatibility of pronounced detachment with improved confinement based on the NBI-heated HL-2A L-mode plasma with low-density. Through impurity seeding, radiation becomes higher at plasma edge and causes edge cooling after pronounced detachment. Turbulent transport is examined in detail by experiments and global integrated simulations. Ion dominant turbulent transport decreases at normalized minor radius $\rho \in \left[ {0.1,{ }0.4} \right],$ and ion temperature increases at $\rho \in \left[ {0,{ }0.8} \right]$ . Edge turbulence and turbulent transport through ion channels decrease significantly, which could result from reduced free energy source due to edge cooling. The reduced edge turbulent transport benefits to decrease the power entering the SOL/divertor. The decreased edge outward transport and increased core electron density and ion temperature make major contributions to the improved plasma confinement after pronounced detachment.
Topik & Kata Kunci
Penulis (28)
Ting Wu
Min Xu
Zhuo Wang
Lin Nie
Zhanhui Wang
Jinming Gao
Yihang Chen
Yiren Zhu
Yi Zhang
Liang Liu
Dong Li
Kai Zhang
Rui Ke
Xiaoxue He
Zengceng Yang
Xin Yu
Na Wu
Zhihui Huang
Kaiyang Yi
Weice Wang
Longwen Yan
Yonggao Li
Ting Long
Renxu Wang
Wenjing Tian
Zhe Wang
Laizhong Cai
Yi Yu
Akses Cepat
- Tahun Terbit
- 2025
- Sumber Database
- DOAJ
- DOI
- 10.1088/1741-4326/ad9e04
- Akses
- Open Access ✓