Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1824657 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2011 | 4 Pages |
Abstract
This communication reports optical properties and radiation responses of Pb2+ 0.5 and 1.0 mol%-doped YCa4O(BO3)3 (YCOB) single crystals grown by the micro-pulling-down (μ-PD) method for neutron scintillator applications. The crystals had no impurity phases according to the results of X-ray powder diffraction. These Pb2+-doped crystals demonstrated blue-light luminescence at 330 nm because of Pb2+1S0–3P0,1 transition in the photoluminescence spectra. The main emission decay component was determined to be about 250–260 ns under 260 nm excitation wavelength. When irradiated by a 252Cf source, the relative light yield of 0.5% Pb2+-doped crystal was about 300 ph/n that was determined using the light yield of a reference Li-glass scintillator.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Yutaka Fujimoto, Takayuki Yanagida, Yuui Yokota, Noriaki Kawaguchi, Kentaro Fukuda, Daisuke Totsuka, Kenichi Watanabe, Atsushi Yamazaki, Valery Chani, Akira Yoshikawa,