Plasma MHD
SPARC Axisymmetric Plasma Equilibrium
Adjust axis pressure under the fixed 8.7 MA plasma-current and 12.2 T central-field condition to predict pressure, poloidal flux and magnetic-field components.
Published scope
The inputs, geometry and outputs below follow the registered public case. Published verification applies only to the stated conditions. Service availability requires a live request.
Axisymmetric Equilibrium Direct MLP
The SPARC axisymmetric data defines GEQDSK equilibria at a fixed 8.7 MA plasma current and 12.2 T central toroidal field. Five flux surfaces are revolved into 5,760 vertices and 11,520 triangles.
Adjust axis pressure from 0.6403841298 to 1.378491395 MPa to predict poloidal flux, pressure and three magnetic-field components. The frozen model passed its independent 1.215411709 MPa comparison.
- Geometry
- Five nested toroidal flux surfaces
- Geometry scope
- same_geometry_and_fixed_8.7_ma_12.2_t_conditions_only
- Fixed conditions
- plasma_current_ma: 8.7; central_toroidal_field_t: 12.2
Adjustable inputs
| Input | Range | Default |
|---|---|---|
| Axis pressure | 0.6403841298 – 1.378491395 MPa | 1.215411709 |
Output fields
- Plasma equilibrium fields: Poloidal Flux, Pressure, Magnetic Field X, Magnetic Field Y, Magnetic Field Z
Registered verification
- registered_status
- passed
- summary
- The model passed the pre-registered independent SPARC 1416 equilibrium comparison after model freeze.
- registered_parameters
- axis_pressure_mpa: 1.215411709
- registered_reference
- SPARCPublic sparc_1416 independent holdout
- point_count
- 5760
- holdout_metrics
- poloidal_flux: RMSE: 0.00944672097674462; Relative L2: 0.00670504203580611; Correlation: 0.9999178607667331; pressure: RMSE: 5612.374588248877; Relative L2: 0.0074994588425393496; Correlation: 0.9999016617805578; magnetic_field_x: RMSE: 0.049232172171495635; Relative L2: 0.005359009915780166; Correlation: 0.9999857211952828; magnetic_field_y: RMSE: 0.04979038193699558; Relative L2: 0.005419772046241911; Correlation: 0.9999855102458305; magnetic_field_z: RMSE: 0.021021747281043036; Relative L2: 0.01189023783754219; Correlation: 0.9999504437664286
Recorded workflow evidence
- Project opening
- PASS
- Save and reopen
- PASS
- Training
- NOT_RUN
- Prediction
- NOT_RUN
- Independent accuracy
- NOT_RUN
- Portable validation
- NOT_RUN
These are recorded checks; they do not establish live service availability or accuracy for every new request.