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KEK Hiroshi Yamaoka
Task list for Magnet/Iron yokeTask list for Magnet/Iron yoke
Solenoid magnetSolenoid magnet
Iron yokeIron yoke
Experimental hall and other facilitiesExperimental hall and other facilities
May 11, ’05
SolenoidIron Yoke
B=3T
Coil/superconductor design - Optimize coil configuration2 layers coil+ Al support cylinder + Correction coil? → Calculation: Magnetic force on the coil - Superconductor designConductor size, Material(Al?, Cu?) → Calculation: Load line, Quench simulationCoil support systemConfiguration(Rod?, triangle shape?, string?), size? → Calculation: De-centering/shifted force Self-weight, Thermal load Coil supports have to withstand these forces.Cryostat design - Calculate required wall thickness. Calorimeter is supported on the inner vacuum wall.Assembly/Installation - Assembling procedure.- How install the magnet into iron yoke.Cooling schemeThermal designCryogenics systemPower Supply
Task list for MagnetTask list for Magnet
Tesla
Correction coil
R4.
0m
Magnetic field calculation - Optimize iron yoke configuration Field uniformity<2mm +Correction coil Try to loose amount of ironSupport structure for iron yoke (barrel yoke/end yoke) How support the yoke against forces. Fixture, Bolts? Configuration, Size → Calculation: Self-weight, magnetic force, seismic force? The size of support → Minimize as possibleYoke assembling Weight of one layer >1000 tones. → Assembled from several piece of segments due to a limit of crane capacity.Segment configuration with keeping stiffness as complete one structure has to be considered.Construction Make a construction procedure → Easy/quick construction with high assembling accuracy. Adjust way to the beam line/levelMaintenance procedures Design: Easy/quick access mechanism to the inner detector.
Cable
Earthquake
Self-weight
Mag. force
Solenoid
Barrel Yoke
BUniformity
Task list for Iron YokeTask list for Iron Yoke
Tesla
End Yoke
Space for Solenoid/Yoke assembling Estimation of required space for;- Coil winding- Cryogenic system- Yoke assembling. Required crane capacity
Experimental hall and other facilitiesExperimental hall and other facilities