Title : 
Quantitive Research of the Crystallinity of Pr Doped 
  
  
        
            Author : 
Yamaji, Akihiro ; Yanagida, Takayuki ; Yokota, Yuui ; Kamada, Kei ; Yoshikawa, Akira ; Pejchal, Jan
         
        
            Author_Institution : 
Inst. of Mater. Res., Tohoku Univ., Sendai, Japan
         
        
        
        
        
        
        
            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;
         
        
        
            Journal_Title : 
Nuclear Science, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TNS.2012.2189895