| 1. |
4°K mechanical structure of coils |
| 2. |
Superconducting winding 1.8°K |
| 3. |
80°K thermal screen |
| 4. |
Cryostat, internal area at 220°C |
| 5. |
Cryostat, external area at 20°C |
| 6. |
Supporting pedestal for the
cryostat and screens |
| 7. |
First wall actively cooled to 220°C |
| 8. |
Toroidal pumped limiter - |
| 9. |
Cryogenic supply, 1.8 K, 4 K and 80 K |
| 10. |
Towards exchanger, water pressurised at 220°C, 40 bars |
| 11.et 12 |
Poloidal field coils |
| 13 |
Magnetic circuit |
| 14 |
Heating antenna at ion cyclotronic frequency |
| 15 |
Heating antenna at lower hybrid frequency |
|
Major plasma
radius :
|
2.25
m
|
|
Minus plasma
radius :
|
0.70
m
|
|
Diameter :
|
11.5
m
|
|
Height :
|
7.2 m
|
|
Internal
vacuum vessel diameter :
|
1.80
m
|
|
Total weight of
vacuum vessel and heat screens :
|
50 t
|
|
Toroidal magnetic field
at the plasma centre :
|
4.5
T
|
|
Maximum magnetic field on the conductor :
|
9.0
T
|
|
Average diameter of a magnet coil :
|
2.60 m
|
|
Dimension of NbTi
superconductor :
|
2.8
x 5.6 mm²
|
|
Weight of
superconductor :
|
~ 45
t
|
|
Total weight of magnet:
|
~
160 t
|
|
Total magnetic energy :
|
600 MJ
|
|
Plasma current :
|
1.7
MA
|
|
Potential duration of the discharge :
|
1000
s
|
|
Weight of central solenoid :
|
56 t
|
|
Weight of magnetic circuit :
|
830
t
|
|
Cooling power at 80 K :
|
40
kW
|
|
Cooling power at 4.5 K :
|
650
W
|
|
Cooling power at 1.75 K :
|
300
W
|
