scholarly journals Люминесцентные свойства облученных электронами с энергией 12 MeV кристаллов шпинели MgO· 2.5Al-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=-

Author(s):  
И.Г. Мегела ◽  
В.Т. Маслюк ◽  
И.Ю. Роман ◽  
О.М. Поп ◽  
Т.А. Виеру-Василица

The investigation of the luminescent properties of nonstoichiometric spinel compositions of MgO·2,5Al2O3 irradiated in direct and scattered beams of 12 MeV electrons on M-30 microtron are given. The phosphorescence decay kinetics of these compounds that occur after irradiation have been studied. It was found that the kinetics of induced luminescence can be described the Becquerel’s hyperbola. The degree parameter of this hyperbola is increased with increasing the dose of radiation. The regularities of the thermoluminescence peak change in the range of 110-250ºC with the dose are investigated. It is concluded that obtained results can be used for clinical and technological dosimetry of pulsed electron beams.

2013 ◽  
Vol 200 ◽  
pp. 215-219 ◽  
Author(s):  
Andriy P. Luchechko ◽  
Igor I. Syvorotka ◽  
Yaroslav Zakharko ◽  
I.M. Syvorotka

Abstract. Excitation and emission spectra under UV and X-ray excitations, as well as the luminescence decay kinetics of Gd3Ga5O12: Bi single crystalline films were studied. The emission spectra observed in the spectral region 350-700 nm at room temperature consist two elementary bands peaked at 446 and 521 nm. The influence of growth conditions on the luminescent properties of Gd3Ga5O12: Bi3+ garnet have been revealed. The integral and relative intensities of the luminescence bands depend on the excitation wavelength. The Bi3+ decay curves of all investigated films show non-single exponential behavior at room temperature.


1975 ◽  
Vol 34 (2) ◽  
pp. 326-331 ◽  
Author(s):  
Irene Simo ◽  
Joachim Stauff
Keyword(s):  

1979 ◽  
Vol 31 (4) ◽  
pp. 253-256 ◽  
Author(s):  
T. Kobayashi ◽  
Y. Segawa ◽  
S. Namba

2008 ◽  
Vol 1 ◽  
pp. 091203 ◽  
Author(s):  
Takeru Okada ◽  
Takashi Furutani ◽  
Toshihiro Yoshioka

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