bbbtbtbb

Idealized limitsbb

'85 '86 '87'88 '89 '90 '91 '92 '93 '94 '95 '96 '97 '98 '99 '00 '01

b0.15bN=5 432High bp H modeReversed Shear modeH mode

0.1bbN=1

0.05

00

5

1015IpBt/a [MA T / m]2025

'85'86 '87'88 '89 '90 '91 '92 '93 '94 '95 '96 '97 '98 '99 '00 '01

btbb5bquasi-steady > 5tE

transientb4

dq95=2.8-4.2,li=0.9-1.15

b32d1023456q95

780123H factor

4bb

b2.5First 4-unitinjection

210E036902

1.5NBI(#7+#9+#10B+#14)

High-power &long-pulse(3 units)

EC(» 1.6MW)

105

n=2

0.500780.15

E036902

9time[s]102.5JECCD0.10

01

234
5Pulse length [s]6#12JBS

1999

Long-pulse(1 unit)

1.5#4#20.05#31Island

00.30.40.5r

0.60.50.7110GHzGyrotrons

nD reduction due to Ar~10%

1Ar~0.8%~0.5%

12

Ar~0.8%~0.5%

0.8~0.2%0.60.4~0%0.6ne/n GW

0.81~0.2%0.600.80.8r/a0.91.0~0%

1 Tiped ( k e V )2b

R200HFS(top )fannelR600

New GuideTube

R100

b

HFS(mid )LFS(mid )High bp plasma

32no gas and no pellet

E37413H 89PL

1

Ip=1 MA, d=0.4-0.62.5with HFS(top)pellet

P(P-NB) (MW)20

2P(N-NB) (MW)0321030ne (10 19 m-3)

56time (s)1.5+gas-puffing

1Dadiv (a.u.)4

with HFS(mid)pellet

with gas-puffing

70

10.40.50.6ne/nGW

0.70.8HHy , 2 = 1.4, ne av e/nG W = 0.8, q9 5 = 6.9, dx =0.45, bN = 2.22.0Ip0.5(MA)0PLH 4(MW) 20Vl 0.5(V) 0
4ne2(1019m-3)
05.5N-NB

PNB

10 PNB(MW)032 Wdia1 (MJ)0r ~ 0.266.5Time(s)r ~ 0.77

7.51.8H-H98y2

11.61.41.2JT-60

1.00.80.2ASDEX-U

0.40.60.8–ne/nGW

11.2Grassy

0.6triangularity d0.50.4Giant

0.30.2FIR-U1 FIR-U20.10341MA,2 0d5
67q953.65T, q95=6.9,

m2

YAG Thomsont = 7.39s(before ELM)35.9GHz

1Collapse Phase

0Grass-t = 7.35804sE39115t = 6.4s

0.11MA,20 d0-

2.1T, q95=3.6,

234

R (m)

Gian0.10 -0.2-0.1R-R sep (m)00.1High-field-side SOL plasma was measured, for the first time,with new Inner reciprocating Mach probe:SOL profile and flow pattern are investigated at 3 locations (Inner, Xp and outermidplane)Flow reversal at outer midplane SOL (low field side), Asakura et al., Phys. Rev. Lett 84 (2000) 3093.
10.0SOLMidplane Mach probe

Z (m)Inboard Mach probe

SOL-1.0Xp Mach probeDivertor

2.03.0 R (m)4.0Mach number

Main plasma

field lines to divertor

Outer divertor0.5Inner SOLflow to divertorflow reversal

0-0.5-10

Outer midplane0102030405060

Distance from separatrix (mm)mapping to midplane

axis

543
210-11.

surfaceE36639, 5.40 s

E36639, 5.4 s"current hole"1

Bp ~033.2 3.4 3.6 3.8R [m]4MSEpoints

010.

10.
0.

j~00.
000.

0.

r

0.

0.

123R [m]4101.5E36639

20Ip

[MA]

PNB

[MW]

E36639, 5.40 s

8Ti(r)

640202bNPEC

01bp

[MW]

Dadiv

0357time [s]200[A.U.]

Te(r)

9

28.18 s

1.
5
10.
50

6.4 s5.4 s

9.8 s4.46 s

00.

0.

r

0.

0.

1bITER-FEATS-S exampleHH1.5HHy2ne/ n GW

1.5b0.8bNbN3.2ITER

3.2ne/ nGW0.80.80.8P radPheat

0.55

fBSPradPheat

bfBS

0.55

0.85

f CD 1.01.0fuel purityfCD

1MA/3T

6E36715, 6.4 s5q 438E35037, 8.5 s7q

6q

5
430

1r/ a

2100q

1r/a

Full non-inductive CDIp

2Ibeam1

E 3 6 7 51

1.5I b e a m( N NBI b e a m( P NB

E C CD

1IbsIbs

0.5040.85fuel purity

68time (s)10120012345t i m es (678

[1] Fur ther i mpr oved understanding of physics elements[2] Ful l demonstra t ion of advanced scenari os for DEMOSuperconducting PFCNBI

CryostatSuperconducting TFC

52

36V

78

H2910F11V1F12F12F13F1415

181617186F193

D2

1Present JT-60

Modification of JT-60U

[1] JT-60 have achieved original objective of achieving equivalent breakeven condition in 1996.
[2] Since 1991, we have made significant efforts to extend plasma regime,in confinement, MHD stability , heating and current drive, divertor,energetic particle confinement as necessary conditions for ITER andDEMO such as SSTR.
[3] We have developed two kinds of steady-state operation scenarios.
Integrated demonstration was successfully made.
But it still needs further improvements.