Synthesis of mullite (3Al2O32SiO2) from local kaolin for radiation shielding

Azuhar Ripin, Faizal K.P. Kunchi Mohamed, Asyraf Aman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Raw kaolin from Kota Tinggi, Johor was used in this study to produce ceramic mullite (3Al2O22SiO2) for radiation shielding materials. In this work, an attempt was made to study the potential of local minerals to be used as a shielding barrier for diagnostic radiology radiation facilities in hospitals and medical centers throughout Malaysia. The conventional ceramic processing route was employed in the study using different pressing strength and sintering time. The obtained samples were characterized using X-ray diffractometer (XRD) for phase identification of each of the samples. The lead equivalent (LE) test was carried out using 15.05 mCi Cobalt-57 with gamma energy of 122 keV to compute the abilities of the mullite ceramic samples to attenuate the radiation. XRD patterns of prepared ceramics revealed the presence of orthorhombic mullite, hexagonal quartz and orthorhombic sillimanite structures. Furthermore, the radiation test displayed the ability of ceramics to shield of 70 % of gamma radiation at the distance of 60?cm from the radiation source. The highest lead equivalent thickness is 1.0?mm Pb and the lowest is about 0.06?mm Pb. From the result, it is shown that the ceramic has the potential to use as a shielding barrier in diagnostic radiology facilities due to the ability of reducing the radiation dose up to 70 % from its initial value.

Original languageEnglish
Title of host publication2017 UKM FST Postgraduate Colloquium
Subtitle of host publicationProceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium
PublisherAmerican Institute of Physics Inc.
Volume1940
ISBN (Electronic)9780735416321
DOIs
Publication statusPublished - 4 Apr 2018
Event2017 UKM FST Postgraduate Colloquium - Selangor, Malaysia
Duration: 12 Jul 201713 Jul 2017

Other

Other2017 UKM FST Postgraduate Colloquium
CountryMalaysia
CitySelangor
Period12/7/1713/7/17

Fingerprint

radiation shielding
ceramics
synthesis
radiology
radiation
diffractometers
shielding
Malaysia
pressing
radiation sources
sintering
x rays
cobalt
quartz
routes
minerals
gamma rays
dosage

Keywords

  • Diagnostic Radiology
  • Lead Equivalent Test (LE)
  • Mullite Ceramics
  • Radiation Shielding

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ripin, A., K.P. Kunchi Mohamed, F., & Aman, A. (2018). Synthesis of mullite (3Al2O32SiO2) from local kaolin for radiation shielding. In 2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium (Vol. 1940). [020008] American Institute of Physics Inc.. https://doi.org/10.1063/1.5027923

Synthesis of mullite (3Al2O32SiO2) from local kaolin for radiation shielding. / Ripin, Azuhar; K.P. Kunchi Mohamed, Faizal; Aman, Asyraf.

2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium. Vol. 1940 American Institute of Physics Inc., 2018. 020008.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ripin, A, K.P. Kunchi Mohamed, F & Aman, A 2018, Synthesis of mullite (3Al2O32SiO2) from local kaolin for radiation shielding. in 2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium. vol. 1940, 020008, American Institute of Physics Inc., 2017 UKM FST Postgraduate Colloquium, Selangor, Malaysia, 12/7/17. https://doi.org/10.1063/1.5027923
Ripin A, K.P. Kunchi Mohamed F, Aman A. Synthesis of mullite (3Al2O32SiO2) from local kaolin for radiation shielding. In 2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium. Vol. 1940. American Institute of Physics Inc. 2018. 020008 https://doi.org/10.1063/1.5027923
Ripin, Azuhar ; K.P. Kunchi Mohamed, Faizal ; Aman, Asyraf. / Synthesis of mullite (3Al2O32SiO2) from local kaolin for radiation shielding. 2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium. Vol. 1940 American Institute of Physics Inc., 2018.
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abstract = "Raw kaolin from Kota Tinggi, Johor was used in this study to produce ceramic mullite (3Al2O22SiO2) for radiation shielding materials. In this work, an attempt was made to study the potential of local minerals to be used as a shielding barrier for diagnostic radiology radiation facilities in hospitals and medical centers throughout Malaysia. The conventional ceramic processing route was employed in the study using different pressing strength and sintering time. The obtained samples were characterized using X-ray diffractometer (XRD) for phase identification of each of the samples. The lead equivalent (LE) test was carried out using 15.05 mCi Cobalt-57 with gamma energy of 122 keV to compute the abilities of the mullite ceramic samples to attenuate the radiation. XRD patterns of prepared ceramics revealed the presence of orthorhombic mullite, hexagonal quartz and orthorhombic sillimanite structures. Furthermore, the radiation test displayed the ability of ceramics to shield of 70 {\%} of gamma radiation at the distance of 60?cm from the radiation source. The highest lead equivalent thickness is 1.0?mm Pb and the lowest is about 0.06?mm Pb. From the result, it is shown that the ceramic has the potential to use as a shielding barrier in diagnostic radiology facilities due to the ability of reducing the radiation dose up to 70 {\%} from its initial value.",
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