Optimization of magnetic quadrupole probe-forming systems by the method of synthesis

Abstract

The paper presents a general approach to the problem of synthesis of a focusing system (FS) from several magnetic quadrupole lenses. Two-parameter sets of focusing systems are constructed in which the system length and the object distance are varied. The subclass of orthomorphic FSs with two separate power supplies based on the triplet (three versions) and the Russian quadruplet is discussed in detail, including the ion-optic properties. Traditional and nontraditional designs are compared.