title: Synthesis and thermoluminescence of LaAlO3:Pr3+to UVC radiation dosimetry.
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.
authors: Instituto de Investigación en Metalurgia y Materiales de la Universidad Michoacana de San Nicolás de Hidalgo, Edif. "U", C.U. 58060 Morelia, Michoacán, Mexico.
authors: A
authors: A
authors: Morales-Hernández
authors: Instituto de Investigación en Metalurgia y Materiales de la Universidad Michoacana de San Nicolás de Hidalgo, Edif. "U", C.U. 58060 Morelia, Michoacán, Mexico.
authors: J
authors: J
authors: Zarate-Medina
authors: Instituto de Investigación en Metalurgia y Materiales de la Universidad Michoacana de San Nicolás de Hidalgo, Edif. "U", C.U. 58060 Morelia, Michoacán, Mexico.
authors: M E
authors: ME
authors: Contreras-García
authors: Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco, Col. Vicentino, 09340 México City, Mexico.
authors: J
authors: J
authors: Azorín-Nieto
authors: Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada-Legaria, Av. Legaria 694, 11500 México City, Mexico. Electronic address: riveramt@hotmail.com.
authors: T
authors: T
authors: Rivera-Montalvo
keywords: Dosimetry; LaAlO(3):Pr(3+); Modified Pechini's method; Thermoluminescence; UVR