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ESR, TL, and fluorescence correlation in BaSO4:Eu,P thermoluminescent phosphor

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Title ESR, TL, and fluorescence correlation in BaSO4:Eu,P thermoluminescent phosphor
 
Creator RAO, TKG
SHINDE, SS
BHATT, BC
SRIVASTAVA, JK
NAMBI, KSV
 
Subject luminescence
spectroscopy
 
Description Our earlier ESR studies on the thermoluminescent (TL) phosphor BaSO4:Eu, P indicated the involvement of two SO2- radicals in the TL process and co-doping BaSO4:Eu (0.5 mol%) with phosphorus (0.2 mol%) enhanced its TL efficiency by 5.3 times. The present study indicates an almost lone-to-one correlation in the growth of TL (488 K peak) and ESR (SO2- (B) radical) intensities in the tested range of 1 to 1000 Gy. When the synthesised BaSO4:Eu, P was thermally treated in the temperature range 673 to 1273 K, the TL, ESR, and fluorescence intensities yielded maxima at 1173 K. These results give further support to our earlier speculation that the enhancement of TL sensitivity in BaSO4:Eu, P results from an increased intake of divalent europium into the lattice.
 
Publisher AKADEMIE VERLAG GMBH
 
Date 2011-07-12T21:16:13Z
2011-12-26T12:47:51Z
2011-12-27T05:40:57Z
2011-07-12T21:16:13Z
2011-12-26T12:47:51Z
2011-12-27T05:40:57Z
1996
 
Type Article
 
Identifier PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 157(1), 173-179
0031-8965
http://dx.doi.org/10.1002/pssa.2211570122
http://dspace.library.iitb.ac.in/xmlui/handle/10054/3633
http://hdl.handle.net/10054/3633
 
Language en