|
|
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
|
|
|
|
|
General