jt-60u 的实验进展
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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
JT-60U• Long pulse• SteadyState
ITER
Non-inductive CD
Improved confinement
MHD & Instability
• Heat control• Particle control
Advanced operation regimes
• (1) Reversed shear mode with ITB
• (2) High ELMy H-mode
Reversed shear mode with ITB
Reversed Magnetic Shear discharge in JT-60U
•
High equivalent fusion power gain of QDT
eq=1.25
Sustainment of Negative Magnetic Shear with LHCD
Quasi-steady sustainment of transport barriers
Quasi-steady Reversed Shear Mode (18E) by NBI heating: ITB + ETB
Fully Non-Inductive Current Drive in
Quasi-Steady Reversed Shear Plasma
Formation of Internal Transport Barrier
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.
High Performance Advanced Plasma in JT-60U without Using Central Solenoid Coils
High ELMy H-mode
High performance ELMy H-mode
Sustainment of high normalized beta plasma
H89 = 2.1, N =2.6-2.7, = 0.46, Ip = 1 MA, Bt = 2.1 T
High Fusion Triple Product in High-p H-mode Plasmas
• The world highest fusion triple product of nD
(0) E Ti (0) = 1.5*102
1 m-3 s keV has been achieved in JT-60U's high- p H-mode plasmas.
• Simultaneously the ion temperature marked the world record of 45 keV.
Non-inductive steady-state high-p H-mode plas
mas at high density (60E)
Steady state high performance device is needed
• High Q• High beta
JT-60U• Long pulse• SteadyState
ITER
Non-inductive CD
Improved confinement
MHD & Instability
• Heat control• Particle control
Next plan: JT-60SC
JT-60U
边界物理组芯部物理组
RS
高
MHD
高能粒子
SOL
加料
偏滤器
稳态运行
ITB
NAKA
聚变工程部聚变物理部
计划室
实验 I+II
理论室
解析室
试验室
RF室
NB室
装置室
ITER部 计算中心
JT-60U