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Non-destructive compositional analysis of sol–gel synthesized lithium titanate (Li2TiO3) by particle induced gamma-ray emission and instrumental neutron activation analysis

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Abstract

Lithium titanate, one of the important tritium breeding materials in D–T based fusion reactor under ITER programme, was synthesized through sol–gel route. For chemical quality control of finished product, it was necessary to quantify the lithium and titanium contents. As this ceramic sample is difficult to dissolve, non-destructive analytical methods are preferred for compositional analysis. In the present work, two non-destructive nuclear analytical methods namely particle induced gamma-ray emission (PIGE) using proton beam and instrumental neutron activation analysis (INAA) using reactor neutrons were standardized for the determination of lithium and titanium concentrations, respectively and applied to eleven samples of lithium titanate. To the best of our knowledge, Li quantification in lithium titanate sample is being reported for the first time using PIGE. For quantifications of Li and Ti, 478 keV prompt gamma-ray from 7Li (p, p′γ) 7Li and 320 keV gamma-ray from 50Ti (n,γ) 51Ti were measured, respectively, by high resolution gamma-ray spectrometry. The PIGE and INAA methods were validated using several synthetic samples containing lithium and titanium, respectively. Concentrations of lithium and titanium and Li/Ti mole ratios were evaluated and compared with the stoichiometric concentration of Li2TiO3.

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Acknowledgments

Authors thank Dr. A. Goswami, Head, RCD, BARC for his support and keen interest in this study. Authors thank Dr. P. Singh, Head, IADD, Mr. S. K. Gupta, Mr. A. Agarwal and other FOTIA crew members of IADD, BARC, Dr. S. Santra, NPD, BARC, Dr. R. Tripathi and Dr. S. Sodaye, RCD, BARC for their support and help during experimental work using PIGE.

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Authors and Affiliations

  1. Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India

    S. Chhillar, R. Acharya & P. K. Pujari

  2. Homi Bhabha National Institute, DAE, Mumbai, 400094, India

    S. Chhillar

  3. Fuel Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India

    T. V. Vittal Rao, Y. R. Bamankar, S. K. Mukerjee & S. K. Aggarwal

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  1. S. Chhillar
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  2. R. Acharya
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  3. T. V. Vittal Rao
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  4. Y. R. Bamankar
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  5. S. K. Mukerjee
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  6. P. K. Pujari
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  7. S. K. Aggarwal
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Correspondence to R. Acharya.

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Chhillar, S., Acharya, R., Vittal Rao, T.V. et al. Non-destructive compositional analysis of sol–gel synthesized lithium titanate (Li2TiO3) by particle induced gamma-ray emission and instrumental neutron activation analysis. J Radioanal Nucl Chem 298, 1597–1603 (2013). https://doi.org/10.1007/s10967-013-2609-5

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  • DOI: https://doi.org/10.1007/s10967-013-2609-5

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