Ignition conditions in axially magnetized cylindrical targetsare investigated by examining the thermal balance of assembled DT fuelconfigurations at stagnation. Special care is taken to adequatelyevaluate the energy fraction of 3.5 MeV alpha particles deposited inmagnetized DT cylinders. A detailed analysis of the ignitionboundaries in the ρR,T parametric plane is presented. It is shownthat the fuel magnetization allows a significant reduction of the ρRignition threshold only when the condition BR ≳ 6 × 105G cm is fulfilled (B is the magnetic field strength and R is the fuel radius).
Thermal conduction and alpha-particle constraints for the ignition of a D-T linear magnetic fusion (LMF) reactor