90° Bent Two-Nozzle Architecture
Both exhausts magnetically deflected to same direction — ~100% capture, net thrust
FRC Core
p + ¹¹B → 3α
90° Bend
Dipole magnets
Bρ = 0.24 T·m
r_bend ≈ 2 cm at 12T
Nozzle A
Collimated exhaust →
Nozzle B
Collimated exhaust →
Spacecraft hull & payload
← Net thrust
Both nozzles push the same direction
Capture Fraction
Both loss cones routed to nozzles
~100% of alphas produce thrust
(minus thermalization losses, paper Sec 3.1)
90° Magnetic Bend
Bρ = 0.24 T·m (2.9 MeV He²⁺)
r_bend = 2 cm at 12T
Standard beam optics