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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/9084

Title: EFFECTIVE CO-DOPANTS FOR CASO4-DY AND CASO4-TM PHOSPHORS
Authors: ATONE, MS
MOHARIL, SV
GUNDURAO, TK
Issue Date: 1995
Publisher: IOP PUBLISHING LTD
Citation: JOURNAL OF PHYSICS D-APPLIED PHYSICS, 28(6), 1263-1267
Abstract: CaSO4:Dy and CaSO4:Tm are highly sensitive phosphors used in the thermoluminescence (TL) dosimetry of the ionizing radiations. It is shown that, by using P, Mo or SO3 as co-dopants, the TL sensitivities can be increased by 40-100%. The increase in sensitivity originates in various processes, which are discussed. P acts as a charge compensator, allowing the incorporation of Dy in higher concentration without causing quenching. Mo increases the efficiency of trap filling. It is claimed that use of Mo as a co-dopant will improve the sensitivities without disturbing the other dosimetric characteristics.
URI: http://dx.doi.org/10.1088/0022-3727/28/6/032
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9084
http://hdl.handle.net/10054/9084
ISSN: 0022-3727
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