Production of a self-sustained fusion reaction in the IGNITEX experiment

Summary form only given. The low-beta, ohmic, L-mode regime of operation is possible in IGNITEX. Although this regime seems to be the most suitable for an ignition experiment, other regimes should be accessible as well with IGNITEX. A magnet made of single-turn coils for both the toroidal and poloidal field system components is fed by DC homopolar power supplies. The magnet is assembled around a resistive vacuum vessel, and it is enclosed by a liquid-nitrogen cryostat. Radiation self-shielding by the massive conducting structure allows hands-on, out-vessel maintenance. A limiterless, plasma-gun-coated first wall maintained by a robotic arm is envisioned. Plasma diagnosis is realized with a set of diagnostics placed in the outside of the primary shielding. Utilization of unconventional tokamak technologies and simplicity of design make a low cost of construction possible