Eu Doped and Eu, Tl Co-Doped NaI Scintillators

Author

Shiran, Natalia V. ; Gektin, Alexander V. ; Boyarintseva, Yanina ; Vasyukov, Sergey ; Boyarintsev, Andrej ; Pedash, Vyacheslav ; Tkachenko, Sergej ; Zelenskaya, Olga ; Kosinov, N. ; Kisil, O. ; Philippovich, L.

Author_Institution

Inst. for Scintillation Mater. NAS of Ukraine, Kharkov, Ukraine

Volume

57

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

1233

Lastpage

1235

Abstract

It is shown that Eu co-doping of NaI:Tl allows to modify scintillation properties and reach a better performance comparing to NaI:Tl. The overlapping of absorption, excitation and emission bands typical for Eu²⁺ and T1⁺ ions might be the reason for energy exchange between these luminescence centers in NaI:Tl, Eu. Enhanced efficiency of Eu²⁺ emission and delayed rise times in NaI:Tl, Eu confirm this assumption. Eu co-doping allows to utilize an additional excitation channels in “conventional” NaI:Tl scintillator.

Keywords

doping; europium; sodium compounds; solid scintillation detectors; thallium; NaI:EuTl; absorption band overlapping; delayed rise time; doped scintillator; emission band overlapping; emission efficiency; energy exchange; excitation band overlapping; luminescence center; Crystallization; Crystals; Electromagnetic wave absorption; Energy exchange; Energy resolution; Kinetic theory; Luminescence; Pollution measurement; Spectroscopy; Steady-state; Energy transfer; NaI-Tl, Eu; integration time; luminescence; scintillation;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2010.2048578

Filename

5485121