TY - JOUR
T1 - Growth and scintillation characterization of Ce3+-doped Rb2LiGdBr6 single crystals
AU - Rooh, Gul
AU - Kim, H. J.
AU - Kim, Sunghwan
AU - Khan, Sajid
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/10/1
Y1 - 2016/10/1
N2 - Growth and scintillation characterizations of the newly developed cerium doped Rb2LiGdBr6 (RLGB) single crystals were investigated. RLGB, which belongs to bromo-elpasolite crystal family, was grown by the vertical Bridgman technique with nominally 1%, 5%, and 10% Ce3+-concentration (mole%). X-ray excited luminescence spectra show typical Ce3+ bands between 350 to 460 nm wavelength regions. A good energy resolution of 5.5% (FWHM) and light yield of 25,500±2600 ph/MeV for 662 keV γ-rays were observed at 5% Ce3+-concentration. Under γ-ray excitation, RLGB:Ce3+ crystals display multi-exponential decays with Ce3+ like decay components at 23 ns and 29 ns for 1% and 5% Ce-concentrations, respectively. From the results, it is expected that this scintillator could be used as a thermal neutron detector because of Li and Gd ions in the host lattice. Also, like other inorganic halide scintillators, it is very hygroscopic.
AB - Growth and scintillation characterizations of the newly developed cerium doped Rb2LiGdBr6 (RLGB) single crystals were investigated. RLGB, which belongs to bromo-elpasolite crystal family, was grown by the vertical Bridgman technique with nominally 1%, 5%, and 10% Ce3+-concentration (mole%). X-ray excited luminescence spectra show typical Ce3+ bands between 350 to 460 nm wavelength regions. A good energy resolution of 5.5% (FWHM) and light yield of 25,500±2600 ph/MeV for 662 keV γ-rays were observed at 5% Ce3+-concentration. Under γ-ray excitation, RLGB:Ce3+ crystals display multi-exponential decays with Ce3+ like decay components at 23 ns and 29 ns for 1% and 5% Ce-concentrations, respectively. From the results, it is expected that this scintillator could be used as a thermal neutron detector because of Li and Gd ions in the host lattice. Also, like other inorganic halide scintillators, it is very hygroscopic.
KW - A1. Decay time
KW - A1. Elpasolite
KW - A1. Energy resolution
KW - A1. X-ray
KW - B2. Light yield
UR - http://www.scopus.com/inward/record.url?scp=84977072743&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2016.06.117
DO - 10.1016/j.nima.2016.06.117
M3 - Article
AN - SCOPUS:84977072743
SN - 0168-9002
VL - 832
SP - 187
EP - 190
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -