Quadrupole mass-filter on the basis of electrostatic sector deflector

It was asserted that there is an opportunity to carry on dynamic analysis in channel of quadrupole mass-filter on cylindrical field and axisymmetrical quadrupole superposition. The peculiarity of this installation is unit's availability to operate as mass-filter as well as particles energy quasi-spherical analyser. In the case certain complexities inherent to mass-filter with straight channel can be avoid. (author)