ABSORPTION SPECTRA IN THE VACUUM ULTRAVIOLET REGION OF LiF CRYSTALS IRRADIATED BY REACTOR AND GAMMA-RADIATION,

Abstract

A study was made of the rate of formation of optical absorption spectra in the vacuum uv range (from 11 to 5 ev.) under the effect of reactor and gamma radiation. The structure of the absorption spectra in the vacuum uv range under gamma radiation does not differ from that under reactor radiation. The color centers in the vacuum uv range are more effectively formed by gamma radiation at comparable absorbed doses. The ratio of increase of the absorption coefficient in the 6- to 9-ev. range to the absorption coefficient of the F band in the LiF crystals (in vacuo) is greater than in the LiF crystals (in air). Therefore, the effect of admixture on the rate of color center formation varies considerably for the different centers. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 10, 1969
Accession Number
AD0696166

Entities

People

  • A. V. Podin

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Absorption
  • Absorption Coefficients
  • Absorption Spectra
  • Coefficients
  • Color Centers
  • Crystals
  • F Band
  • Gamma Rays
  • Optical Absorption
  • Radiation
  • Rate Of Formation
  • Spectra

Fields of Study

  • Physics

Readers

  • Nuclear and Radiation Engineering.
  • Spectroscopy.
  • Thin Film Deposition Science.