Nonuniform distribution of absorbed energy in high-resistance materials excited by an electron beam

V. F. Shtan'ko, V. G. Glybin, V. M. Tolmachev

Research output: Contribution to journalArticle

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Abstract

Experimental results are presented on the changes in the optical characteristics of lithium fluoride induced by an electron beam with time-varying density and pulse energies close to the threshold for destruction of the material. The spatial distribution of color centers is investigated, especially near breakdown channels. Mechanisms for nonuniform accumulation of defects are discussed, along with the fundamental causes of the inhomogeneous energy distributions induced by the high-current electron beam. Concrete results of calculations of the field intensity distribution in LiF crystals during irradiation are presented, based on models of "uniform" and nonuniform charging of the sample. An abrupt increase in the electric field intensity is predicted near the breakdown channel.

Original languageEnglish
Pages (from-to)396-401
Number of pages6
JournalTechnical Physics
Volume43
Issue number4
Publication statusPublished - Apr 1998

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high resistance
breakdown
electron beams
lithium fluorides
color centers
destruction
charging
high current
energy distribution
spatial distribution
irradiation
thresholds
electric fields
energy
causes
defects
pulses
crystals

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Nonuniform distribution of absorbed energy in high-resistance materials excited by an electron beam. / Shtan'ko, V. F.; Glybin, V. G.; Tolmachev, V. M.

In: Technical Physics, Vol. 43, No. 4, 04.1998, p. 396-401.

Research output: Contribution to journalArticle

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