Quantitive Research of the Crystallinity of Pr Doped ${\\rm Lu}_{3}{\\rm Al}_{5}{\\rm O}_{12}$

Author

Yamaji, Akihiro ; Yanagida, Takayuki ; Yokota, Yuui ; Kamada, Kei ; Yoshikawa, Akira ; Pejchal, Jan

Author_Institution

Inst. of Mater. Res., Tohoku Univ., Sendai, Japan

Volume

59

Issue

5

fYear

2012

Firstpage

2135

Lastpage

2140

Abstract

In this study, we investigated the relation between crystallinity and scintillation properties of Pr:LuAG crystals grown by Czochralski (Cz) method. The crystallinity was determined as the dislocation density using the X-ray rocking curve technique. The scintillation pulse-height spectra were collected under 662 keV¹³⁷Cs γ-ray excitation to evaluate the light yield and energy resolution. It was confirmed that both the light yield and energy resolution correlates with the crystalinity; however, the other factors also have an influence.

Keywords

X-ray diffraction; crystal growth from melt; crystal structure; dislocation density; doping; lutetium compounds; praseodymium; scintillation; γ-ray excitation; Czochralski method; Lu₃Al₅O₁₂:Pr; Pr doped materials; X-ray rocking curve technique; crystal growth; crystallinity properties; dislocation density; energy resolution; scintillation pulse-height spectra; Crystals; Density measurement; Energy resolution; Lattices; Strain; Vectors; X-ray diffraction; Dislocation density; X-ray diffraction; scintillation properties; single crystal;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2012.2189895

Filename

6179359