Title :
Scintillation properties of Eu-doped LiF-CaF2 eutectic for neutron detectors with different Eu concentration
Author :
Fukuda, Kenji ; Yanagida, T. ; Fujimoto, Yasutaka ; Kawaguchi, Noriyuki
Author_Institution :
Tokuyama Corp., Shunan, Japan
fDate :
Oct. 27 2013-Nov. 2 2013
Abstract :
Eu2+-doped LiF/CaF2 eutectic scintillators with different Eu concentrations were fabricated by the simple solidification method. Eu concentrations were 0.005, 0.02, 0.05, 0.1, 0.3, 1, 3, and 5%, and they looked visibly semitransparent. In SEM analysis, fine lamellar structure was observed in Eu low concentration samples. Radioluminescence spectra were collected under X-ray exposure and Eu2+ 5d-4f emission appeared at 435 nm. Finally, thermal neutrons were irradiated to samples and the scintillation light yields monotonically decreased with Eu concentrations.
Keywords :
X-ray effects; solid scintillation detectors; solidification; Eu concentration; Eu low concentration samples; Eu2+ 5d-4f emission; Eu2+-doped CaF2 eutectic scintillator; Eu2+-doped LiF eutectic scintillator; SEM analysis; X-ray exposure; fine lamellar structure; neutron detectors; radioluminescence spectra; scintillation light; solidification method; Detectors; Materials; Neutrons; Optical imaging; Optimized production technology; Photoluminescence; Photonics;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE
Conference_Location :
Seoul
Print_ISBN :
978-1-4799-0533-1
DOI :
10.1109/NSSMIC.2013.6829637
