Перегляд за автором "Miroshnichenko, V.I."

Сортувати за: Порядок: Результатів:

  • A conceptual design of a MeV-energy ion microprobe with an immersion probe-forming system 
    Ponomarev, A.G.; Ignat’ev, I.G.; Magilin, D.V.; Miroshnichenko, V.I.; Storizhko, V.E. (Вопросы атомной науки и техники, 2003)
    The authors propose a new design for a MeV-energy ion microprobe based on the immersion probe-forming system that employs the accelerating tube at an early stage of beam focusing. The final probing beam formation on the ...
  • Axial energy spread measurements of a 27.12 MHz multicusp ion source 
    Voznyi, V.I.; Miroshnichenko, V.I.; Mordyk, S.N.; Storizhko, V.E.; Shulha, D.P. (Вопросы атомной науки и техники, 2009)
    A 4.7 cm diameter and 8 cm long 27.12 MHz radio-frequency (RF) inductively coupled multicusp ion source has been designed for ion beam applications. Ion energy distribution functions (IED) of the extracted helium and argon ...
  • Formation of MeV energy ion beams with high current density for materials micro-irradiation 
    Romanenko, A.V.; Ponomarev, A.G.; Miroshnichenko, V.I. (Вопросы атомной науки и техники, 2013)
    A numerical analysis has been performed for the optimum configuration of a probe-forming system based on magnetic quadrupole lens multiplets in a nuclear scanning microprobe intended for irradiations of micron-size areas. ...
  • Matching of beam phase density distribution with ion-optic characteristics of a probe-forming system in nuclear microprobe 
    Ponomarov, A.A.; Miroshnichenko, V.I. (2010)
    The nonuniform phase density distribution of the beam particles and its nonlinear dynamic simulation in the probe-forming system used to obtain distribution profiles of the beam current density on the target subject to the ...
  • Plasma density measurement of RF ion source 
    Voznyy, V.I.; Miroshnichenko, V.I.; Mordyk, S.M.; Nagornyy, A.G.; Nagornyy, D.A.; Storizhko, V.E.; Shulha, D.P. (Вопросы атомной науки и техники, 2005)
    For a radiofrequency (27.12 MHz) inductively coupled ion source (3 cm diameter, 7 cm long, without external magnetic field, working gas-hydrogen, helium, argon), measurements of the average plasma density were made using ...
  • Possibilities of improving paraxial brightness in rf ion sources 
    Mordyk, S.M.; Shulha, D.P.; Miroshnichenko, V.I.; Storizhko, V.E.; Voznyy, V.I. (Вопросы атомной науки и техники, 2005)
    The paraxial brightness in rf ion sources can be improved by redistributing the beam phase density, increasing the beam current density and using beam extraction systems with low aberrations. Experimental data are ...
  • Power absorption inside helicon plasma of helium RF ion source in nonaxial magnetic field 
    Alexenko, O.V.; Miroshnichenko, V.I.; Voznyi, V.I. (Вопросы атомной науки и техники, 2015)
    The paper studies integral and one-dimensional distribution of RF electromagnetic field absorption in a helicon plasma with external magnetic field directed at an angle to a plasma plane. A simplified model of a helicon ...
  • Power absorption inside helicon plasma of helium RF ion source in nonaxial magnetic field 
    Alexenko, O.V.; Miroshnichenko, V.I.; Voznyi, V.I. (Вопросы атомной науки и техники, 2015)
    The paper studies integral and one-dimensional distribution of RF electromagnetic field absorption in a helicon plasma with external magnetic field directed at an angle to a plasma plane. A simplified model of a helicon ...
  • Resonant RF electromagnetic field input in the helicon plasma ion source 
    Alexenko, O.V.; Miroshnichenko, V.I.; Mordik, S.N. (Вопросы атомной науки и техники, 2014)
    Spatial distribution of RF electromagnetic field absorption by a plasma electron subsystem of ion source is studied. An ion source operates in a helicon mode (wci < w < wce < wpe). A simplified model of plasma RF source ...
  • Skin-effect influence on transition radiation 
    Miroshnichenko, V.I.; Ostroushko, V.M. (Вопросы атомной науки и техники, 2015)
    It is considered the transition radiation for the normal incidence of a charged particle on the boundary of plasma medium in the conditions of anomalous skin effect, at the frequencies much less than plasma frequency. The ...
  • The effect of a magnetic field on the motion of electrons for the field emission process description 
    Lebedynskyi, S.O.; Miroshnichenko, V.I.; Kholodov, R.I.; Baturin, V.A. (Вопросы атомной науки и техники, 2015)
    The Schrödinger equation is solved for the wave function of an electron moving in a superposition of external constant and uniform electric and magnetic fields at an arbitrary angle between the field directions. The changing ...
  • The experimental setup for high voltage breakdown studies in the high vacuum 
    Baturin, V.A.; Karpenko, O.Yu.; Profatilova, Ia.V.; Pustovoitov, S.O.; Miroshnichenko, V.I. (Вопросы атомной науки и техники, 2015)
    An experimental setup for studying the processes occurring during breakdown in the high vacuum are described. The equipment is designed for comparative studies of pre-breakdown processes and the breakdown voltage of the ...