|
Design Parameters
|
| Barrel Toroid
| End-cap Toroid
| Central Solenoid
|
Overall Dimensions
|
inner diametre
| [m]
| 9.4
| 1.65
| 2.46
|
outer diametre
| [m]
| 20.1
| 10.7
| 2.63
|
axial length
| [m]
| 25.3
| 5.0
| 5.30
|
number of coils
|
| 8
| 2 x 8
| 1
|
Mass
|
conductor
| [ton]
| 118
| 2 x 20.5
| 3.8
|
cold mass
| [ton]
| 370
| 2 x 160
| 5.4
|
total assembly
| [ton]
| 830
| 2 x 239
| 5.7
|
Coil
|
turns/coil
|
| 120
| 116
| 1173
|
nominal current
| [kA]
| 20.5
| 20.5
| 7.73
|
inductance
| [H]
| 5.5
| 2 x 1.0
| 1.35
|
stored energy
| [MJ]
| 1080
| 2 x 250
| 39
|
central field
| [T]
|
|
| 2.0
|
peak field
| [T]
| 3.9
| 4.1
| 2.6
|
field integral
| [Tm]
| 2 - 6
| 4 - 8
|
|
ramp up time
| [h]
| 4
| 4
| 0.5
|
Conductor
|
size
| [mm2]
| 57 x 12
| 41 x 12
| 30 x 4.25
|
total length
| [km]
| 56
| 2 x 13
| 10
|
ratio Al:Cu:NbTi
|
| 28 : 1.3 : 1
| 19 : 1.3 : 1
| 15.6 : 0.9 : 1
|
number of strands
|
| 38
| 40
| 12
|
strand diametre
| [mm]
| 1.3
| 1.3
| 1.22
|
critical current at 5T and 4.2K
| [kA]
| 58
| 60
| 20.4
|
RRR aluminium
|
| > 800
| > 800
| > 500
|
working point at 4.5K
| [%]
| 30
| 30
| 20
|
temperature margin
| [K]
| 1.9
| 1.9
| 2.7
|
Cooling Requirements
|
at 4.5K
| [W]
| 990
| 2 x 330
| 130
|
at 60-80K
| [W]
| 7400
| 2 x 1700
| 500
|
helium mass flow
| [g/s]
| 410
| 2 x 280
| 6-20
|
cool down time
| [days]
| 30
| 4
| 8
|
|
|
|