DocumentCode :
1517473
Title :
Growth and Luminescence of M-Type 
and Tb: Scintillation Si
Author :
Liu, Wenpeng ; Zhang, Qingli ; Zhou, Wenlong ; Gu, Changjiang ; Yin, Shaotang
Author_Institution :
Anhui Inst. of Opt. & Fine Mech., Chinese Acad. of Sci., Hefei, China
Volume :
57
Issue :
3
fYear :
2010
fDate :
6/1/2010 12:00:00 AM
Firstpage :
1287
Lastpage :
1290
Abstract :
M-type GdTaO4 and Tb:GdTaO4 bulk single crystals were first grown by Czochralski method. Transmission, excitation, emission spectra and luminescence decay curves of them were measured. The refractive indices of GdTaO4 were calculated with its transmission spectrum and fitted with Sellmeier equation. GdTaO4 shows Gd3+ absorption and defect luminescence, Tb3+ exhibits its typical absorption and luminescence in GdTaO4. The luminescence decay times of GdTaO4 and Tb:GdTaO4 were also determined by fitting luminescence decay curves with single-exponential function.
Keywords :
crystal growth from melt; defect absorption spectra; gadolinium compounds; infrared spectra; light transmission; luminescence; phosphors; refractive index; scintillation; terbium; ultraviolet spectra; visible spectra; Czochralski growth; GdTaO4:Tb; M-type bulk scintillation single crystals; Sellmeier equation; absorption spectra; defect luminescence; emission spectra; excitation spectra; luminescence decay curves; luminescence decay times; refractive index; single exponential function; transmission spectra; Absorption; Crystalline materials; Crystals; Curve fitting; Equations; Luminescence; Optical refraction; Optical variables control; Phosphors; Raw materials; ${rm GdTaO}_{4}$ ; luminescence; refractive index; scintillator;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2009.2037320
Filename :
5485079
Link To Document :
