Open AccessOptical characterization of neutron detection crystal Li6Gd(BO3)3:Ce
Author(s) -
Fan Yang,
Shangke Pan,
Derui Ding,
Wu Yun-Tao,
Guina Ren
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.113301
Subject(s) - ion , materials science , luminescence , crystal (programming language) , absorption (acoustics) , radiative transfer , absorption spectroscopy , spectral line , ultraviolet , absorption band , transmittance , scintillation , analytical chemistry (journal) , atomic physics , optoelectronics , optics , physics , chemistry , quantum mechanics , composite material , programming language , chromatography , astronomy , detector , computer science
Colorless and transparent Li6Gd(BO3)3:Ce crystals are grown with the Czoralski method. Their optical characteristics and luminescence processes are also investigated. The ultraviolet-vaccum ultraviolet (UV-VUV) transmittance spectra are measured and the result shows that absorption peaks due to Ce3+ ions and Gd3+ ions, and the absorption band related to charge transfer band of Ce4+ ions are present. According to the UV-VUV excitation and emission spectra, it is found that there appear luminescences of 5d4f radiative transitions of Ce3+ ions and of 4f4f radiative transitions of Gd3+ ions, and also Gd3+Ce3+ energy transfer. The X-ray and -ray stimulated luminescence spectra show that the scintillation light of the crystal is mainly from Ce3+ ions.