Title :
Neutron responses of Eu2+ activated LiCaAlF6 scintillator
Author :
Kawaguchi, Noriaki ; Yanagida, Takayuki ; Novoselov, Andrey ; Kim, Kyoung Jin ; Fukuda, Kentaro ; Yoshikawa, Akira ; Miyake, Masayasu ; Baba, Mamoru
Author_Institution :
Tokuyama Corporation Shibuya 3-chome, Shibuya-ku, Tokyo 150-8383 JAPAN
Abstract :
Eu1% LiCaAlF6 (LiCAF) single crystal (nominal composition) with 2 mm in diameter and 35 mm in length was grown by the micro-pulling-down (μ-PD) method. Emission from Eu2+ centers were observed in α-ray excited luminescence. Neutron response was compared with Li-glass (GS20, Saint-Gobain) using 252Cf. It is found that the decay time of Eu1%:LiCAF is 1.6 μsec, which is slower than that of GS20. Light yield of the Eu:LiCAF single crystal indicated from 1.5 times to twice as large as that of GS20. Therefore, when light yield of GS20 is 6000 photons/neutron, that of Eu:LiCAF single crystal is estimated from 9000 to 13000 photons/neutron.
Keywords :
Crystalline materials; Crystallization; Detectors; Luminescence; Neutrons; Nuclear and plasma sciences; Nuclear power generation; Photonic crystals; Solid state circuits; Temperature;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE
Conference_Location :
Dresden, Germany
Print_ISBN :
978-1-4244-2714-7
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2008.4774611
