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JT-60U 的实验进展

JT-60U 的实验进展. 2003-04-25. JT-60U: R = 3~3.4m, a = 0.6-1.1m, b = 1.0-1.7m, Ip < 5MA, Bt ~ 4T. Advanced Tokamak Research. High Q High beta. ITER. Improved confinement MHD & Instability. Heat control Particle control. Long pulse SteadyState. Non-inductive CD. JT-60U.

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JT-60U 的实验进展

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  1. JT-60U的实验进展 2003-04-25

  2. JT-60U:R = 3~3.4m, a = 0.6-1.1m, b = 1.0-1.7m, Ip < 5MA, Bt ~ 4T

  3. Advanced Tokamak Research • High Q • High beta ITER Improved confinement MHD & Instability • Heat control • Particle control • Long pulse • SteadyState Non-inductive CD JT-60U

  4. Advanced operation regimes • (1) Reversed shear mode with ITB • (2) High b ELMy H-mode

  5. Reversed shear mode with ITB

  6. Reversed Magnetic Shear discharge in JT-60U

  7. High equivalent fusion power gain of QDTeq=1.25

  8. Sustainment of Negative Magnetic Shear with LHCD

  9. Quasi-steady sustainment of transport barriers

  10. Quasi-steady Reversed Shear Mode (18tE) by NBI heating: ITB + ETB

  11. Fully Non-Inductive Current Drive in Quasi-Steady Reversed Shear Plasma

  12. Formation of Internal Transport Barrier

  13. Current Hole in JT-60U • In the experimental research on JT-60U reversed shear plasmas, a plasma with a 'current hole', a zero-current region at the core part of the toroidal plasma, was discovered in 2000. The zero current in the core region was also reported from JET. • The current hole extended up to 40 % of the plasma radius. The current hole existed stably for 5 s. • The current hole is an unexpected discovery in tokamaks.

  14. High Performance Advanced Plasma in JT-60U without Using Central Solenoid Coils

  15. High b ELMy H-mode

  16. High performance ELMy H-mode

  17. Sustainment of high normalized beta plasma H89 = 2.1, bN =2.6-2.7, d = 0.46, Ip = 1 MA, Bt = 2.1 T

  18. High Fusion Triple Product in High-bp H-mode Plasmas • The world highest fusion triple product of nD(0) tE Ti (0) = 1.5*1021 m-3 s keV has been achieved in JT-60U's high- bp H-mode plasmas. • Simultaneously the ion temperature marked the world record of 45 keV.

  19. Non-inductive steady-state high-bp H-mode plasmas at high density (60tE)

  20. Steady state high performance device is needed • High Q • High beta ITER Improved confinement MHD & Instability • Heat control • Particle control • Long pulse • SteadyState Non-inductive CD JT-60U

  21. Next plan: JT-60SC

  22. JT-60U 芯部物理组 边界物理组 高 b RS MHD I TB 高能粒子 SOL 加料 偏滤器 稳态运行

  23. NAKA ITER部 计算中心 聚变物理部 JT-60U 聚变工程部 实验I+II 计划室 理论室 解析室 试验室 RF室 NB室 装置室

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