Showing posts with label Lithium tetraborate. Show all posts
Showing posts with label Lithium tetraborate. Show all posts

Saturday, 16 September 2017

Thermoluminescent Characteristics of Li2 B4 O7 Doped with Mn2+ and Eu3+ Ions

P. TREJO-GARCÍA 1, E. CRUZ-ZARAGOZA3 , R. ACEVES2 , J. E. ESPINOSA1 , R. PALOMINO MERINO1*

1 Facultad de Ciencias Físico-Matemáticas, B. Universidad Autónoma de Puebla., Pue., Ciudad Universitaria, Puebla, Pue., México. P.O. Box 1067, C.P. 72001 México.

2 Departamento de Investigación en Física, Universidad de Sonora, Apdo. Postal 5-088, 83190 Hermosillo Sonora, México.

3 Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70- 543, 04510 Ciudad de México, México

1*Email: palomino@fcfm.buap.mx

Abstract 
Analysis of thermoluminescent properties were made for two samples; Li2 B4 O7 , Li2 B4 O7 :Mn2+:Eu3+. These samples were prepared by melt quenching method. The glow curves of the samples show two broad peaks at 160º C and 245 ºC, and a high peak at 130ºC for Li2 B4 O7 doped. The response of the materials were analyzed according to the doses (0.2-80 Gy), fading (0- 72 hours) and reproducibility of the experiment (10 times). To determine how the glow curve is formed, thermal bleaching for a dose of 5 Gy were made from room temperature to 300º C. Besides, X-ray diffraction patterns were recorded to identify the structure and grain size of the samples.

DOI: https://doi.org/10.15415/jnp.2017.51012

LINK: http://dspace.chitkara.edu.in/jspui/bitstream/1/872/1/51012_JNP_Merino.pdf

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