DocumentCode :
792980
Title :
PrBr 
: Ce 
: A New Fast Lanthanide Trihalide Scintillator
: Ce : A New Fast Lanthanide Trihalide ScintillatorAuthor :
Birowosuto, M.D. ; Dorenbos, P. ; van Eijk, C.W.E. ; Krämer, K.W. ; Güdel, H.U.
Author_Institution :
Fac. of Appl. Sci., Delft Univ. of Technol.
Volume :
53
Issue :
5
fYear :
2006
Firstpage :
3028
Lastpage :
3030
Abstract :
We present PrBr3: Ce3+ as a new member of the lanthanide trihalide scintillator family. This compound has the same crystal structure as its cousin LaBr3: Ce3+. The calculated density rhor (5.33 g/cm3) and the effective atomic number Zeff (48.27) are higher than those of LaBr3 : Ce3+ (rhor=5.07 g/cm3 and Z eff=46.90). This results in a shorter total attenuation length of 2.09 cm for 511 keV gamma-ray excitation. Lower light yield than that of LaBr3: Ce3+ is observed for prBr3:5%Ce3+ (16 000 photons/MeV) and 20% Ce3+ (21 000 photons/MeV) versus 70 000 photons/MeV in LaBr 3: Ce3+. Scintillation decay curves of those crystals are non exponential and their decay times are faster than 10 ns. The scintillation properties of undoped PrBr3 are also presented
Keywords :
cerium; crystal structure; gamma-ray detection; praseodymium compounds; scintillation; solid scintillation detectors; LaBr3:Ce3+; PrBr3; PrBr3:Ce3+; calculated density; crystal structure; effective atomic number; fast lanthanide trihalide scintillator; gamma-ray excitation; lower light yield; scintillation decay curves; total attenuation length; undoped PrBr3; Chemical technology; Crystalline materials; Crystallization; Energy resolution; Lattices; Optical attenuators; Photonic crystals; Powders; Radiation detectors; Space technology; Lanthanide trihalides; PrBr; scintillator;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2006.880969
Filename :
1710310
Link To Document :
