Scintillation properties of Eu2+-activated barium fluoroiodide

被引:4
|
作者
Gundiah, Gautam [1 ]
Bourret-Courchesne, Edith [2 ]
Bizarri, Gregory [1 ]
Hanrahan, Stephen M. [1 ]
Chaudhry, Anurag [1 ,3 ]
Canning, Andrew [4 ]
Moses, William W. [1 ]
Derenzo, Stephen E. [1 ]
机构
[1] Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA
[2] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA
[3] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA
[4] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA
关键词
barium fluoroiodide; BaFI; europium; gamma-ray detection; scintillators; ENERGY-RESOLUTION SCINTILLATOR; LUMINESCENCE PROPERTIES;
D O I
10.1109/NSSMIC.2009.5402265
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The scintillation properties of powders and single-crystals of BaFI doped with Eu2+ are presented. Single crystals were grown by the vertical Bridgman technique. Under optical and X-ray excitation, the samples exhibit a narrow Eu2+ 5d-4f transition emission centered at 405 nm. The scintillation light output is estimated to be 55,000 +/- 5,000 photons/MeV at 662 keV with 85% of the light decaying within 600 ns. An energy resolution of 8.5% full width at half maximum (FWHM) has been achieved using this scintillator for 662 keV excitation (Cs-137 source) at room temperature.
引用
收藏
页码:1575 / +
页数:2
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