INVERSE PROBLEMS OF MAGNETOSTATICS AND THE DESIGN OF DOUBLE-FOCUSING ELECTRON MAGNETIC SPECTROMETERS

A method is proposed for the design of double-focusing electron magnet ic spectrometers by using direct methods of solving inverse problems o f magnetostatics. The conditions for double-focusing electron magnetic spectrometers in a system with two pairs of electromagnetic coils are determined for the first time in a third-order model, which appreciab ly improves the main optical characteristics of the device: the resolu tion and the luminosity. This system is used to design a real energy a nalyzer with a free toric chamber in the third-order model. (C) 1997 A merican Institute of Physics. [S1063-7842(97)01311-1].