Color and luminescence centers in LiF(U) crystals irradiated by pulsed electron beams

V. Yu Yakovlev, A. V. Moiseeva, G. S. Denisov

Research output: Contribution to journalArticle

Abstract

Characteristics of color and luminescent centers produced in LiF:U6 + (0.01M%) crystals by pulses of accelerated electrons (0.25 MeV, 15 ns, 8-200 mJ/cm 2) at 77-350 K are studied using time-resolved optical spectroscopy. It is found that the time constant of the exponential rise of the cathodoluminescence intensity in the visual spectral range after completion of the irradiation pulse coincides with the decay time of a group of lines in the UV region at T = 77-280 K and with the decay time of the number of V k-centers induced by the pulse of irradiation at T > 280 K. The mechanisms of population of the ground radiative level of the emission center and the structure of its electronic and nuclear subsystems are discussed.

Original languageEnglish
Pages (from-to)579-584
Number of pages6
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume112
Issue number4
DOIs
Publication statusPublished - Apr 2012

Fingerprint

color centers
Luminescence
Electron beams
Irradiation
electron beams
luminescence
Color
Crystals
Cathodoluminescence
pulses
crystals
irradiation
decay
cathodoluminescence
time constant
Electrons
electronics
spectroscopy
electrons
Optical spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Color and luminescence centers in LiF(U) crystals irradiated by pulsed electron beams. / Yakovlev, V. Yu; Moiseeva, A. V.; Denisov, G. S.

In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 112, No. 4, 04.2012, p. 579-584.

Research output: Contribution to journalArticle

@article{b24db98e17404ce282254005930dd2c8,
title = "Color and luminescence centers in LiF(U) crystals irradiated by pulsed electron beams",
abstract = "Characteristics of color and luminescent centers produced in LiF:U6 + (0.01M{\%}) crystals by pulses of accelerated electrons (0.25 MeV, 15 ns, 8-200 mJ/cm 2) at 77-350 K are studied using time-resolved optical spectroscopy. It is found that the time constant of the exponential rise of the cathodoluminescence intensity in the visual spectral range after completion of the irradiation pulse coincides with the decay time of a group of lines in the UV region at T = 77-280 K and with the decay time of the number of V k-centers induced by the pulse of irradiation at T > 280 K. The mechanisms of population of the ground radiative level of the emission center and the structure of its electronic and nuclear subsystems are discussed.",
author = "Yakovlev, {V. Yu} and Moiseeva, {A. V.} and Denisov, {G. S.}",
year = "2012",
month = "4",
doi = "10.1134/S0030400X1203023X",
language = "English",
volume = "112",
pages = "579--584",
journal = "Optics and Spectroscopy (English translation of Optika i Spektroskopiya)",
issn = "0030-400X",
publisher = "Springer Science + Business Media",
number = "4",

}

TY - JOUR

T1 - Color and luminescence centers in LiF(U) crystals irradiated by pulsed electron beams

AU - Yakovlev, V. Yu

AU - Moiseeva, A. V.

AU - Denisov, G. S.

PY - 2012/4

Y1 - 2012/4

N2 - Characteristics of color and luminescent centers produced in LiF:U6 + (0.01M%) crystals by pulses of accelerated electrons (0.25 MeV, 15 ns, 8-200 mJ/cm 2) at 77-350 K are studied using time-resolved optical spectroscopy. It is found that the time constant of the exponential rise of the cathodoluminescence intensity in the visual spectral range after completion of the irradiation pulse coincides with the decay time of a group of lines in the UV region at T = 77-280 K and with the decay time of the number of V k-centers induced by the pulse of irradiation at T > 280 K. The mechanisms of population of the ground radiative level of the emission center and the structure of its electronic and nuclear subsystems are discussed.

AB - Characteristics of color and luminescent centers produced in LiF:U6 + (0.01M%) crystals by pulses of accelerated electrons (0.25 MeV, 15 ns, 8-200 mJ/cm 2) at 77-350 K are studied using time-resolved optical spectroscopy. It is found that the time constant of the exponential rise of the cathodoluminescence intensity in the visual spectral range after completion of the irradiation pulse coincides with the decay time of a group of lines in the UV region at T = 77-280 K and with the decay time of the number of V k-centers induced by the pulse of irradiation at T > 280 K. The mechanisms of population of the ground radiative level of the emission center and the structure of its electronic and nuclear subsystems are discussed.

UR - http://www.scopus.com/inward/record.url?scp=84861819720&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84861819720&partnerID=8YFLogxK

U2 - 10.1134/S0030400X1203023X

DO - 10.1134/S0030400X1203023X

M3 - Article

VL - 112

SP - 579

EP - 584

JO - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)

JF - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)

SN - 0030-400X

IS - 4

ER -