Features of focusing of a high-intensity pulsed ion beam formed by a diode with a passive anode

X. P. Zhu, L. Ding, Q. Zhang, A. I. Pushkarev, M. K. Lei

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The results of investigating the focusing of a high-power ion beam, which is formed by a diode with a semicylindrical geometry and a passive anode, are presented. Two types of focusing diodes were investigated: with external magnetic insulation (one-pulse mode) and self-magnetic insulation of electrons (twopulse mode). Measurements of the energy-density distribution of the ion beam and the ion-current density were performed. It was found that when the diode operates in the two-pulse mode, the region of the maximum ion-beam energy density in the focal plane is displaced relative to the region of the maximum ion-current density by 5–10 mm. It is shown that the effect of a displacement of the focal spot with the maximum energy density is determined by the presence of a large number of accelerated neutral atoms in the ion beam. These atoms are produced as a result of the ion charge-exchange process in the anode–cathode gap of the ion diode during its operation in the two-pulse mode.

Original languageEnglish
Pages (from-to)562-569
Number of pages8
JournalInstruments and Experimental Techniques
Volume60
Issue number4
DOIs
Publication statusPublished - 1 Jul 2017

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Ion beams
Anodes
Diodes
anodes
ion beams
diodes
flux density
Ions
insulation
ion currents
Insulation
Current density
pulses
current density
Atoms
ion charge
neutral atoms
charge exchange
density distribution
Ion exchange

ASJC Scopus subject areas

  • Instrumentation

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Features of focusing of a high-intensity pulsed ion beam formed by a diode with a passive anode. / Zhu, X. P.; Ding, L.; Zhang, Q.; Pushkarev, A. I.; Lei, M. K.

In: Instruments and Experimental Techniques, Vol. 60, No. 4, 01.07.2017, p. 562-569.

Research output: Contribution to journalArticle

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