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|Title:||EFFECTIVE CO-DOPANTS FOR CASO4-DY AND CASO4-TM PHOSPHORS|
|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.|
|Appears in Collections:||Article|
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