TY - JOUR
T1 - Crystal growth and characterization of calcium metaborate scintillators
AU - Fujimoto, Y.
AU - Yanagida, T.
AU - Kawaguchi, N.
AU - Fukuda, K.
AU - Totsuka, D.
AU - Watanabe, K.
AU - Yamazaki, A.
AU - Chani, V.
AU - Nikl, M.
AU - Yoshikawa, A.
PY - 2013
Y1 - 2013
N2 - Calcium metaborate CaB2O4 single crystals were grown by the Czochralski (CZ) method with the radio-frequency (RF) heating system. In these crystals, a plane cleavage was observed along the growth direction. The crystals had an 80% transparency, and no absorption bands were detected in the 190-900 nm wavelength range. The 241Am 5.5 MeV α-ray-excited radioluminescence spectrum of CaB2O4 demonstrated a broad intrinsic luminescence peak at 300-400 nm, which originated from the lattice defects or an exciton-based emission. According to the pulse height spectrum, when irradiated by neutrons from a 252Cf source, the scintillation light yielded approximately 3200 photons per neutron (ph/n).
AB - Calcium metaborate CaB2O4 single crystals were grown by the Czochralski (CZ) method with the radio-frequency (RF) heating system. In these crystals, a plane cleavage was observed along the growth direction. The crystals had an 80% transparency, and no absorption bands were detected in the 190-900 nm wavelength range. The 241Am 5.5 MeV α-ray-excited radioluminescence spectrum of CaB2O4 demonstrated a broad intrinsic luminescence peak at 300-400 nm, which originated from the lattice defects or an exciton-based emission. According to the pulse height spectrum, when irradiated by neutrons from a 252Cf source, the scintillation light yielded approximately 3200 photons per neutron (ph/n).
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U2 - 10.1016/j.nima.2012.11.002
DO - 10.1016/j.nima.2012.11.002
M3 - Article
AN - SCOPUS:84870794787
SN - 0168-9002
VL - 703
SP - 7
EP - 10
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 -