Comparative Study of Optical and Scintillation Responses of Sr3NbGa3Si2O14 (SNGS) and La3Ta0.5Ga5.3Al0.2O14 (LTGA) Crystals

被引：0

作者：

Yanagida, Takayuki ^{[1
]}

Fujimoto, Yutaka ^{[2
]}

Futami, Yoshisuke ^{[3
]}

机构：

[1] Nara Inst Sci & Technol, Grad Sch Mat Sci, Nara 6300192, Japan

[2] Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Sendai, Miyagi 9808579, Japan

[3] Kumamoto Coll, Natl Inst Technol, Kumamoto 8668501, Japan

来源：

SENSORS AND MATERIALS | 2015年 / 27卷 / 03期

关键词：

scintillator; langasite; crystal; piezoelectric; X-ray; GROWTH;

D O I：

10.18494/sam.2015.1062

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Optical and scintillation properties of Sr3NbGa3Si2O14 (SNGS) single crystal were evaluated for the first time and compared with those of La3Ta0.5Ga5.3Al0.2O14 (LTGA), which was previously reported to exhibit such properties. SNGS showed similar to 80% optical transmittance at wavelengths longer than 250 nm. Under 250 nm excitation, a strong photoluminescence (PL) appeared at 400 nm with a primary decay time of 1.4 ns. In an X-ray-induced radioluminescence spectrum, an intense emission peak at 400 nm was observed, and the primary scintillation decay time was similar to 1.37 mu s. Finally, the absolute scintillation light yield of SNGS turned out to be 850 photons/MeV, which was higher than that of LTGA.

引用

页码：247 / 253

页数：7

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