Growth and characterization of Ce-doped Ca3(BO3)2 crystals for neutron scintillator

被引：19

作者：

Fujimoto, Yutaka ^{[1
,2
]}

Yanagida, Takayuki ^{[1
]}

Tanaka, Hidehiko ^{[1
]}

Yokota, Yuui ^{[1
]}

Kawaguti, Noriaki ^{[4
]}

Fukuda, Kentaro ^{[1
,4
]}

Totsuka, Daisuke ^{[5
]}

Watanabe, Kenichi ^{[6
]}

Yamazaki, Atsushi ^{[6
]}

Yoshikawa, Akira ^{[1
,3
]}

机构：

[1] Tohoku Univ, IMRAM, Aoba Ku, Sendai, Miyagi 9808577, Japan

[2] JSPS, Chiyoda Ku, Tokyo 1028472, Japan

[3] Tohoku Univ, NICHe, Aoba Ku, Sendai, Miyagi 9808579, Japan

[4] TOKUYAMA Corp, Shibuya Ku, Tokyo 1508383, Japan

[5] NIHON KESSHO KOGAKU CO LTD, Tatebayashi Gunma, Japan

[6] Nagoya Univ, Chikusa Ku, Nagoya, Aichi 4648603, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 2011年 / 318卷 / 01期

关键词：

Czochralski method; Borates; Scintillator materials; Scintillators; SINGLE-CRYSTALS; LAB3O6; PURE;

D O I：

10.1016/j.jcrysgro.2010.10.189

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Single crystals of undoped and Ce3+-doped Ca-3(BO3)(2) (CBO) are grown by the Czochralski (CZ) method with an RF heating system. Undoped CBO crystal has high transmittance in the 190-900 nm wavelength range, while the absorption bands were observed around 275 and 350 nm due to the transition from the 4f ground state levels of F-2(5/2) and F-2(7/2) to Ce3+ 5d excited state in Ce3+-doped one. The photoluminescence spectrum of Ce3+-doped CBO crystal showed strong emission band around 400 nm under both 275 and 350 nm excitation due to the 5d-4f transition of Ce3+. In the measurement of pulse height spectra under Am-241 5.5 MeV alpha-ray excitation, Ce3+-doped CBO showed higher energy resolution compared with that of crystal grown by the micro-pulling down (mu-PD) method. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：784 / 787

页数：4

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