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 language | English |
|---|---|
| Pages (from-to) | 579-584 |
| Number of pages | 6 |
| Journal | Optics and Spectroscopy (English translation of Optika i Spektroskopiya) |
| Volume | 112 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 2012 |
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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 journal › Article
}
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
AN - SCOPUS:84861819720
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 -