Scintillation Properties of Ba3RE(PO4)3 Single Crystals (RE = Y, La, Lu)

被引：12

作者：

Takebuchi, Yuma ^{[1
]}

Koshimizu, Masanori ^{[2
]}

Ichiba, Kensei ^{[1
]}

Kato, Takumi ^{[1
]}

Nakauchi, Daisuke ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Yanagida, Takayuki ^{[1
]}

机构：

[1] Nara Inst Sci & Technol NAIST, Div Mat Sci, Nara 6300192, Japan

[2] Shizuoka Univ, Res Inst Elect, Shizuoka 4328011, Japan

来源：

MATERIALS | 2023年 / 16卷 / 13期

基金：

日本学术振兴会;

关键词：

scintillator; radiation detection; orthophosphate; single crystal; INORGANIC SCINTILLATORS; LUMINESCENCE PROPERTIES; LIGHT YIELD; PHOSPHOR; PHOTOLUMINESCENCE; CE3+;

D O I：

10.3390/ma16134502

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Eulytite-type Ba3RE(PO4)(3) (RE = Y, La, and Lu) single crystals were synthesized by the floating zone method, and their scintillation properties were investigated. The powder X-ray diffraction measurement revealed that the single phase of Ba3RE(PO4)(3) samples were successfully synthesized. The samples exhibited a luminescence peak due to self-trapped exciton at around 400 nm under vacuum ultraviolet and X-ray irradiation. The X-ray-induced scintillation decay time constants of the samples were several microseconds at room temperature. In the Am-241 & alpha;-ray irradiated pulse height spectra, all the samples showed a clear full energy peak, and the absolute light yields of the Ba3Y(PO4)(3), Ba3La(PO4)(3), and Ba3Lu(PO4)(3) single crystals were estimated to be 960, 1160, and 1220 ph/5.5 MeV-& alpha;, with a typical error of & PLUSMN;10%, respectively. The scintillation light yields of the Ba3RE(PO4)(3) have been quantitatively clarified for the first time.

引用

页数：10

共 41 条

[1] STRUCTURAL REFINEMENTS OF EULYTITE-TYPE CA3BI(PO4)3 AND BA3LA(PO4)3 [J].