Magnet
Tue, 03 Jul 2018 21:08:10 HAST (2422d)
Here shows the information of superconducting dipole magnet for SAMURAI.
Electro-magnetic parameters
type | H-type, superconducting |
maximum current | 563 A |
magnetomotive force | 1.922 MAT/coil |
current density of coil | 66.74 A/mm^2 |
field at the pole center (median plane) | 3.08 T |
BL integral at 3.08 T | 7.05 Tm |
maximum magnetic field in a coil | 5.4 T |
inductance | 396-150 H |
stored energy | 27.4 MJ |
Calculation Sheet (as a reference):
180704-SAMURAI_IvsB-upload.xlsx.tgz
Ramp speed & Excitation time
Current [A] | Magnetic Field [T] | Ramp speed [A/s] | ![]() |
0-100 | 0-0.97 | 0.04 | |
100-120 | 0.97-1.14 | 0.05 | |
120-140 | 1.14-1.29 | 0.06 | |
140-160 | 1.29-1.42 | 0.07 | |
160-180 | 1.42-1.54 | 0.08 | |
180-563 | 1.54-3.08 | 0.09 |
Geometry of the magnet (designed value)
pole shape | circular | ![]() |
pole gap | 880 mm (800 mm in vacuum chamber) | |
pole diameter | 2000 mm | |
pole height | 500 mm | |
yoke width | 6700 mm | |
yoke depth | 3500 mm | |
yoke height | 4640 mm | |
yoke weight | 566140 kg |
Field map
- Output conditions:
- Area: (x,y,z)=(0, -400, 0)-(3000, 400, 3000) [mm]
- Step: 10 mm
- Unit in table files: position in [mm], magnetic field in [T]
- x, y, z, Bx, By, Bz
- Calculated by OPERA-3D/TOSCA with 1/4 3D-model
- Files (saved as ascii file, zipped: 159 MB, unzipped: 874 MB), 2018/07/04 Updated
- B=3.0 T (3.0005 T, 538.0 A)
- B=2.95 T (2.9500 T, 523.0 A)
- B=2.9 T (2.8997 T, 508.3 A)
- B=2.85 T (2.8504 T, 493.9 A)
- B=2.8 T (2.8012 T, 479.8 A)
- B=2.75 T (2.7505 T, 465.4 A)
- B=2.7 T (2.7000 T, 451.3 A)
- B=2.65 T (2.6506 T, 437.6 A)
- B=2.6 T (2.5997 T, 423.7 A)
- B=2.55 T (2.5499 T, 410.2 A)
- B=2.5 T (2.5005 T, 397.0 A)
- B=2.45 T (2.4495 T, 383.6 A)
- B=2.4 T (2.4006 T, 370.9 A)
- B=2.35 T (2.3510 T, 358.2 A)
- B=2.3 T (2.3008 T, 345.6 A)
- B=2.25 T (2.2495 T, 332.9 A)
- B=2.2 T (2.1994 T, 320.7 A)
- B=2.15 T (2.1506 T, 309.0 A)
- B=2.1 T (2.1004 T, 297.2 A)
- B=2.05 T (2.0510 T, 285.7 A)
- B=2.0 T (2.0002 T, 274.2 A)
- B=1.95 T (1.9504 T, 263.1 A)
- B=1.9 T (1.9008 T, 252.3 A)
- B=1.85 T (1.8505 T, 241.5 A)
- B=1.8 T (1.8005 T, 231.0 A)
- B=1.75 T (1.7499 T, 220.6 A)
- B=1.7 T (1.7005 T, 210.7 A)
- B=1.65 T (1.6505 T, 200.8 A)
- B=1.6 T (1.6005 T, 191.2 A)
- B=1.55 T (1.5506 T, 181.8 A)
- B=1.5 T (1.5003 T, 172.6 A)
- B=1.45 T (1.4498 T, 163.7 A)
- B=1.4 T (1.4002 T, 155.4 A)
- B=1.35 T (1.3496 T, 147.3 A)
- B=1.3 T (1.3003 T, 140.1 A)
- B=1.25 T (1.2504 T, 133.3 A)
- B=1.2 T (1.2004 T, 127.0 A)
- B=1.15 T (1.1499 T, 120.9 A)
- B=1.1 T (1.1000 T, 115.0 A)
- B=1.05 T (1.0498 T, 109.3 A)
- B=1.0 T (0.9997 T, 103.7 A)
- B=0.95 T (0.9499 T, 98.2 A)
- B=0.9 T (0.9001 T, 92.9 A)
- B=0.85 T (0.8498 T, 87.6 A)
- B=0.8 T (0.8003 T, 82.4 A)
- B=0.75 T (0.7497 T, 77.2 A)
- B=0.7 T (0.6999 T, 72.0 A)
- B=0.65 T (0.6500 T, 66.9 A)
- B=0.6 T (0.6000 T, 61.7 A)
- B=0.55 T (0.5501 T, 56.6 A)
- B=0.5 T (0.5001 T, 51.5 A)
- B=0.45 T (0.4501 T, 46.3 A)
- B=0.4 T (0.4001 T, 41.2 A)
- B=0.3 T (0.3001 T, 30.9 A)
- B=0.2 T (0.2000 T, 20.6 A)
- B=0.1 T (0.1000 T, 10.3 A)
- B=2.54 T (2.5404 T, 408.4 A) for SAMURAI17 (2014/4/2)
- B=1.33 T (1.3304 T, 144.4 A) for SAMURAI13 (2016/6/22)
- B=0.5 T (0.5001 T, 51.5 A) for TPC exp., less fluctuation (2017/5/15)
- B=1.153 T (1.1531 T, 121.2 A) for SAMURAI29 (2018/6/25)
- B=3.0 T (3.0005 T, 538.0 A)
- Definission of the coordinate axis (Click to see larger figures)
Field map of the wider area
- Output conditions:
- Area: (x,y,z)=(0, -400, 0)-(6000, 400, 6000) [mm]
- Step: 20 mm
- Unit in table files: position in [mm], magnetic field in [T]
- x, y, z, Bx, By, Bz
- Calculated by OPERA-3D/TOSCA with 1/4 3D-model
- Files (saved as ascii file, zipped: 80 MB, unzipped: 443 MB), 2018/07/04 Updated
- B=3.0 T (3.0005 T, 538.0 A)
- B=2.95 T (2.9500 T, 523.0 A)
- B=2.9 T (2.8997 T, 508.3 A)
- B=2.85 T (2.8504 T, 493.9 A)
- B=2.8 T (2.8012 T, 479.8 A)
- B=2.75 T (2.7505 T, 465.4 A)
- B=2.7 T (2.7000 T, 451.3 A)
- B=2.65 T (2.6506 T, 437.6 A)
- B=2.6 T (2.5997 T, 423.7 A)
- B=2.55 T (2.5499 T, 410.2 A)
- B=2.5 T (2.5005 T, 397.0 A)
- B=2.45 T (2.4495 T, 383.6 A)
- B=2.4 T (2.4006 T, 370.9 A)
- B=2.35 T (2.3510 T, 358.2 A)
- B=2.3 T (2.3008 T, 345.6 A)
- B=2.25 T (2.2495 T, 332.9 A)
- B=2.2 T (2.1994 T, 320.7 A)
- B=2.15 T (2.1506 T, 309.0 A)
- B=2.1 T (2.1004 T, 297.2 A)
- B=2.05 T (2.0510 T, 285.7 A)
- B=2.0 T (2.0002 T, 274.2 A)
- B=1.95 T (1.9504 T, 263.1 A)
- B=1.9 T (1.9008 T, 252.3 A)
- B=1.85 T (1.8505 T, 241.5 A)
- B=1.8 T (1.8005 T, 231.0 A)
- B=1.75 T (1.7499 T, 220.6 A)
- B=1.7 T (1.7005 T, 210.7 A)
- B=1.65 T (1.6505 T, 200.8 A)
- B=1.6 T (1.6005 T, 191.2 A)
- B=1.55 T (1.5506 T, 181.8 A)
- B=1.5 T (1.5003 T, 172.6 A)
- B=1.45 T (1.4498 T, 163.7 A)
- B=1.4 T (1.4002 T, 155.4 A)
- B=1.35 T (1.3496 T, 147.3 A)
- B=1.3 T (1.3003 T, 140.1 A)
- B=1.25 T (1.2504 T, 133.3 A)
- B=1.2 T (1.2004 T, 127.0 A)
- B=1.15 T (1.1499 T, 120.9 A)
- B=1.1 T (1.1000 T, 115.0 A)
- B=1.05 T (1.0498 T, 109.3 A)
- B=1.0 T (0.9997 T, 103.7 A)
- B=0.95 T (0.9499 T, 98.2 A)
- B=0.9 T (0.9001 T, 92.9 A)
- B=0.85 T (0.8498 T, 87.6 A)
- B=0.8 T (0.8003 T, 82.4 A)
- B=0.75 T (0.7497 T, 77.2 A)
- B=0.7 T (0.6999 T, 72.0 A)
- B=0.65 T (0.6500 T, 66.9 A)
- B=0.6 T (0.6000 T, 61.7 A)
- B=0.55 T (0.5501 T, 56.6 A)
- B=0.5 T (0.5001 T, 51.5 A)
- B=0.45 T (0.4501 T, 46.3 A)
- B=0.4 T (0.4001 T, 41.2 A)
- B=0.3 T (0.3001 T, 30.9 A)
- B=0.2 T (0.2000 T, 20.6 A)
- B=0.1 T (0.1000 T, 10.3 A)
- B=1.33 T (1.3304 T, 144.4 A) for SAMURAI13 (2016/6/22)
- B=1.153 T (1.1531 T, 121.2 A) for SAMURAI29 (2018/6/25)
- B=3.0 T (3.0005 T, 538.0 A)
Field map of the half area
- Output conditions:
- Area: (x,y,z)=(-5000, -400, -5000)-(0, 400, 6000) [mm]
- Step: 20 mm
- Unit in table files: position in [mm], magnetic field in [T]
- x, y, z, Bx, By, Bz
- Calculated by OPERA-3D/TOSCA with 1/4 3D-model
- Files (saved as ascii file, zipped: 104 MB, unzipped: 443 MB), 2018/07/04 Updated
Fringe Fields
- You can see the values of the fringe fields in the field map files linked above in detail. Here, the maps on ZX plane of the fringe fields are also linked. You can roughly know the fringe fields around the SAMURAI target area.
- Click to see larger figures. B(0)=3.0T, 2.9T, 2.8T, 2.7T, 2.5T, 2.0T, 1.5T, 1.0T, 0.5T from left to right. The values of |B| are plotted in every 200 mm in Y direction.
Attach file:


















