Thermoluminescent properties of LaAlO3:C crystals synthesized by solid state reaction applied to UV Dosimetry
DOI:
https://doi.org/10.15392/bjrs.v7i2A.805Keywords:
Lanthanum aluminate, thermoluminescence, ultraviolet radiation.Abstract
In this work, the thermoluminescent (TL) response of carbon doped lanthanum aluminate crystals grown by solid state reaction method was investigated. Three syntheses using different combinations of Al2O3, La2O3 and 0.1 wt % of carbon atoms were conducted. The 1:1 mixture of aluminum and lanthanum oxide was mixed with 0.1wt.% carbon and annealed at 1700°C for two hours in a hydrogen atmosphere. The X-ray diffraction analysis revealed the formation of the rhombohedral LaAlO3 crystallographic phase. Ultraviolet-visible spectroscopies were obtained and F and F+ centers were identified ascribed. Fourier transform infrared spectroscopic data show higher and lower frequencies assigned to AlO6 octahedra in LaAlO3. The UV irradiations were carried out using a commercial 8W UV lamp. Thermoluminescence measurements were performed at a Harshaw 4500 TL reader. The three syntheses were very efficient to obtain carbon doped LaAlO3 crystals with high thermoluminescent output, for low exposure rates of UVR fields.
Downloads
References
REFERENCES
VILLAS-BÔAS; , L. A. D. S.; , D. P. F. Efeito da co-dopagem com Pr e Mn nas propriedades elétricas de SrLaAlO3. Revista Matéria, v. 15, n. 1, p. 10, 2010. ISSN 1517-7076.
KAUR, J. et al. Review of the synthesis, characterization, and properties of LaAlO3 phosphors. Research on Chemical Intermediates, p. 1-35, 2013/03/23 2013. ISSN 0922-6168. Disponível em: < http://dx.doi.org/10.1007/s11164-013-1126-z >.
CHEN, T.-Y.; FUNG, K.-Z. A and B-site substitution of the solid electrolyte LaGaO3 and LaAlO3 with the alkaline-earth oxides MgO and SrO. Journal of Alloys and Compounds, v. 368, n. 1–2, p. 106-115, 2004. ISSN 0925-8388. Disponível em: < http://www.sciencedirect.com/science/article/pii/S0925838803008375 >.
STEPHEN W. S. MCKEEVER, M. M., PETER D. TOWNSEND. Thermoluminescence Dosimetry Materials: Properties and Uses. England: Nuclear technology Publishing, 1995. ISBN 10870965191.
XIONG, K.; ROBERTSON, J.; CLARK, S. J. Electronic defects in LaAlO3. Microelectronic Engineering, v. 85, n. 1, p. 65-69, 2008. ISSN 0167-9317. Disponível em: < http://www.sciencedirect.com/science/article/pii/S0167931707002547 >.
PROTECTION, I. C. O. N.-I. R. Guidelines on Limits of Exposure to Ultraviolet Radiation of Wavelengths Between 180 nm and 400 nm (Incoherent Optical Radiation). ICNIRP Guidelines. Health Physics Society 2004.
MORALES-HERNÁNDEZ, A. et al. Synthesis and thermoluminescence of LaAlO3:Pr3+ to UVC radiation dosimetry. Applied Radiation and Isotopes, v. 118, p. 12-17, 2016/12/01/ 2016. ISSN 0969-8043. Disponível em: < http://www.sciencedirect.com/science/article/pii/S096980431630570X >.
RIVERA MONTALVO, T. et al. Termoluminescent Properties of High Sensitive ZrO2+ PTFE for UV Radiation Dosimetry. Materials Science Forum: Trans Tech Publ, 2005. 373-380 p.
RIVERA, T. et al. Green stimulated luminescence of ZrO2 + PTFE to UV radiation dosimetry. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, v. 213, p. 325-328, 2004. ISSN 0168-583X. Disponível em: < http://www.sciencedirect.com/science/article/pii/S0168583X03016379 >.
RIVERA, T. Synthesis and Thermoluminescent Characterization of Ceramics Materials. In: (Ed.). Advances in Ceramics - Synthesis and Characterization, Processing and Specific Applications. China: In Tech, 2011. cap. 6, p.520. ISBN ISBN: 978-953-307-505-1.
DANIELS, F., BOYD, C.A., SAUNDERS, D.F. Thermoluminescence as a research tool. cience v. 117, p. 343–349, 1953.
COLYOTT, L. E. A., M. S.; MCKEEVER, S. W. S. . An integrating ultraviolet-B dosemeter using phototransferred thermoluminescence from a-Al2O3:C. Radiat. Prot. Dosim., v. 72, n. 2, p. 87 - 94, 1997.
LARSEN, N. A. Dosimetry Based on Thermally and Optically Stimulated Luminescence. Niels Bohr Institute, University of Copenhagen: RISO National Laboratory, Roskilde, Denmark, 1999. ISBN 87-550-2485-8 : 87-550-2486-6.
ALVES, N.; FERRAZ, W. B.; FARIA, L. O. Synthesis and investigation of the luminescent properties of carbon doped lanthanum aluminate (LaAlO3) for application in radiation dosimetry. Radiation Measurements, v. 71, n. 0, p. 90-94, 2014. ISSN 1350-4487. Disponível em: < http://www.sciencedirect.com/science/article/pii/S1350448714000341 >.
OLIVEIRA, V. H. et al. Study of TL properties of LaAlO3:Ce,Dy crystals for UV dosimetry. Radiation Measurements, v. 46, n. 10, p. 1173-1175, 2011. ISSN 1350-4487. Disponível em: < http://www.sciencedirect.com/science/article/pii/S1350448711004379 >.
AKSELROD, M. S. et al. Highly Sensitive Thermoluminescent Anion-Defective Alpha-Al203:C Single Crystal Detectors. Radiation Protection Dosimetry, v. 32, n. 1, p. 15-20, July 1, 1990 1990. Disponível em: < http://rpd.oxfordjournals.org/content/32/1/15.abstract >.
MCKEEVER, S. W. S. et al. Characterisation of Al2O3 for use in thermally and optically stimulated luminescence dosimetry. Radiation Protection Dosimetry, v. 84, n. 1-4, p. 163-168, 1999. Disponível em: < http://www.scopus.com/inward/record.url?eid=2-s2.0-0032766479&partnerID=40&md5=95317c6ce5f8b7293f3fdfae09ea6a80 >.
YUKIHARA, E. G., MCKEEVER S. W. S. . Optically stimulated luminescence: fundamentals and applications. 2011.
Powder diffraction files, inorganic, Vol. 21. Published by the JCPDS, Swarthmore, 1983.
DEREŃ, P. J. et al. Spectroscopic properties of LaAlO3 nanocrystals doped with Tb3+ ions. Journal of Luminescence, v. 122–123, n. 0, p. 780-783, 2007. ISSN 0022-2313. Disponível em: < http://www.sciencedirect.com/science/article/pii/S0022231306002912 >. Acesso em: 2007/4//.
AKSELROD, M. S.; BØTTER-JENSEN, L.; MCKEEVER, S. W. S. Optically stimulated luminescence and its use in medical dosimetry. Radiation Measurements, v. 41, Supplement 1, n. 0, p. S78-S99, 2006. ISSN 1350-4487. Disponível em: < http://www.sciencedirect.com/science/article/pii/S135044870700008X >.
ZENG, X. et al. Crystal growth and optical properties of LaAlO3 and Ce-doped LaAlO3 single crystals. Journal of Crystal Growth, v. 271, n. 1–2, p. 319-324, 2004. ISSN 0022-0248. Disponível em: < http://www.sciencedirect.com/science/article/pii/S0022024804008802 >.
SALAVATI-NIASARI, M.; HOSSEINZADEH, G.; DAVAR, F. Synthesis of lanthanum hydroxide and lanthanum oxide nanoparticles by sonochemical method. Journal of Alloys and Compounds, v. 509, n. 10, p. 4098-4103, 2011/03/10/ 2011. ISSN 0925-8388. Disponível em: < http://www.sciencedirect.com/science/article/pii/S0925838810017834 >.
GANGWAR, B. P. et al. Combustion synthesized La2O3 and La(OH)3: recyclable catalytic activity towards Knoevenagel and Hantzsch reactions. RSC Advances, v. 4, n. 98, p. 55407-55416, 2014. Disponível em: < http://dx.doi.org/10.1039/C4RA08353A >.
ALVES, N.; FERRAZ, W. B.; FARIA, L. O. Synthesis and investigation of the luminescent properties of carbon doped lanthanum aluminate (LaAlO3) for application in radiation dosimetry. Radiation Measurements, n. 0, 2014. ISSN 1350-4487. Disponível em: < http://www.sciencedirect.com/science/article/pii/S1350448714000341 >.
Published
Issue
Section
Categories
License
Copyright (c) 2021 Brazilian Journal of Radiation Sciences
This work is licensed under a Creative Commons Attribution 4.0 International License.
Licensing: The BJRS articles are licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/