Ponomarova A. Quadrupole probe-forming systems with free parameters of focusing fields

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0414U001041

Thesis Registration Form

0414U001041.pdf

Applicant for

Specialization

  • 01.04.01 - Фізика приладів, елементів і систем

28-12-2013

Specialized Academic Board

Д 55.051.02

Sumy State University

Essay

Object is a physical process of charged particle beams formation in quadrupole brobe-forming systems. The thesis is devoted to defining the impact of focusing fields free parameters to the beam current density for the formation of precision energy MeV ion beams in a nuclear scanning microprobe. It was used the methods: matrix, gradient descent, Levenberg-Marquardt. It was shown experimentally tripling the current density of the beam using four magnetic quadrupoles with individual power supply elements. Partly the result of the work were implemented to proton lithography equipment at the Institute of Applied Physics of the NAS of Ukraine.

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