ANULUM / SCPN Reactor Systems / Open and non-toroidal magnetic confinement

Open and non-toroidal magnetic confinement

Open-field devices trade the closed torus for simpler geometry and accept that field lines leave the confinement region. Magnetic mirrors reflect particles from regions of stronger field; tandem mirrors add electrostatic end plugs and gas-dynamic mirrors operate collisionally. Cusp fields form from opposed currents with a central null where the field vanishes. The levitated dipole suspends a superconducting ring so the plasma sits in the ring's own dipole field.

Each device core below is the single owner of its reactor family's configuration truth inside the SCPN Reactor Systems research group. Solver mathematics stays in SCPN-Fusion-Core, shared physics and geometry kernels in SCPN Reactor Kernels; a device core consumes them through versioned seams and cannot actuate anything directly.

Device cores in this family

SCPN-MIRROR-CORE · Magnetic mirror · The Magnetic Bottle, Declared Truth Owns the configurations: gas-dynamic mirror, simple magnetic mirror, tandem mirror repository · evidence maturity: computational_prototype · 5 implemented capabilities: device configuration model, diagnostic and clock semantics, level-0 device physics, device 3D model, device CAD model · no release, no demo
SCPN-MAGNETIC-CUSP-CORE · Magnetic cusp · Opposed Currents, Central Null Owns the configurations: cusp repository · evidence maturity: computational_prototype · 2 implemented capabilities: device configuration model, diagnostic and clock semantics · no release, no demo
SCPN-LEVITATED-DIPOLE-CORE · Levitated dipole · A Ring Afloat In Its Own Field Owns the configurations: levitated dipole repository · evidence maturity: computational_prototype · 5 implemented capabilities: device 3D model, device CAD model, device configuration model, diagnostic and clock semantics, level-0 device physics · no release, no demo

Where to start

Read the physicsThe mirror ratio and the loss cone, collisional and confinement time-scales of the WHAM basis, tandem plugging, the levitated coil's flux-conservation charging and force balance. Try the explorerLoad the 17 T / 0.86 T mirror fixture, the tandem case, or the LDX floating coil as Garnier et al. print it, and move the potential, the density or the charging current. Walk the three configurationsMagnetic mirror, magnetic cusp and levitated dipole: what each core owns, excludes, anchors on and does not claim. Compare with the closed familyThe same group's toroidal devices, where field lines never leave the vessel. Check the sourcesEndrizzi et al. 2023, Frank et al. 2025, Garnier et al. 2006, and what each core reproduces from them.

Other families

Closed magnetic confinement5 device cores Open and non-toroidal magnetic confinement3 device cores Self-magnetic and pulsed pinches3 device cores Inertial confinement3 device cores Magneto-inertial and magnetised-target systems4 device cores Electrostatic, beam-target and hybrid systems3 device cores Compare all sixevery level-0 anchor side by side