| Literature DB >> 27571964 |
A Morales-Hernández1, J Zarate-Medina1, M E Contreras-García1, J Azorín-Nieto2, T Rivera-Montalvo3.
Abstract
Thermoluminescent (TL) response of trivalent praseodymium ion doped lanthanum aluminate (LaAlO3:Pr3+) obtained by Pechini method and Spray Dryer was studied. TL response of LaAlO3:Pr3+ powders submitted at 1600°C exhibited one peak centered at 157°C. Sensitivity of LaAlO3:Pr3+ was improved in around 90 times compared with undoped LaAlO3. TL response as a function of wavelength showed a maximum in 230nm. Dosimetric characteristics of LaAlO3:Pr3+ under UVR radiation effects were analyzed. Evaluation of activation energy was obtained by Glow Fit v.1.3 software. Experimental results about thermoluminescent characteristics of LaAlO3:Pr3+ suggest as good candidate to be employed as a complementary thermoluminescent device with other TL phosphors as aluminum oxide.Entities:
Keywords: Dosimetry; LaAlO(3):Pr(3+); Modified Pechini's method; Thermoluminescence; UVR
Year: 2016 PMID： 27571964 DOI： 10.1016/j.apradiso.2016.08.016
Source DB: PubMed Journal: Appl Radiat Isot ISSN： 0969-8043 Impact factor: 1.513