Analysis of trajectory adjusting system using a magnetic lens for the superconducting IFE target

In order to minimize the deviation of the position of spherical superconducting inertial fusion energy (IFE) target from the laser shot point, a target trajectory adjusting system using a magnetic lens was analysed. The system consists of magnets or coils placed symmetrically along the line between the target injection point and the laser shot point. An approximation to the magnetic charge, which forms the magnetic lens, is obtained for general configuration. The magnitude of the magnetic charge limits allowable target displacement at the magnetic lens. Sensitivity analysis of the target deviation is reported to design an active adjusting system which compensates for the perturbation of the parameters of an individually injected target.