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43 Result(s)

within B. S. Tomar Remove this filter Inorganic Chemistry Remove this filter Nuclear Physics, Heavy Ions, Hadrons Remove this filter Physical Chemistry Remove this filter

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  1. No Access

    Article

    Study of hyperfine interactions in calcium titanate perovskite using TDPAC spectroscopy

    Local electronic structure was investigated by observing hyperfine interactions (HFI) in Calcium titanate (CTO) perovskite using time differential perturbed angular correlation (TDPAC) spectroscopy. CTO was sy...

    Ashwani Kumar, Manjulata Sahu, B. S. Tomar in Journal of Radioanalytical and Nuclear Che… (2024)

  2. No Access

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    Retention of Am(III) by montmorillonite: effect of sulphate

    The predominant mineral, montmorillonite, in smectite-rich clays, the most promising buffer & backfill, controls their sorption characteristics towards radionuclides. The role of sulphate on Am(III) sorption b...

    Aishwarya Soumitra Kar, Madhuri A. Patel… in Journal of Radioanalytical and Nuclear Che… (2023)

  3. No Access

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    Evaluation of hyperfine interactions in strontium titanate perovskite for low doses of electron beam radiation

    Perovskite are potential crystalline host phases for immobilization of actinides and fission products generated in nuclear reactor fuel. Crystalline matrix undergoes radiation damage from radiations emanating ...

    Ashwani Kumar, Manjulata Sahu, S. A. Khader… in Journal of Radioanalytical and Nuclear Che… (2023)

  4. No Access

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    Probing electronic environment in gamma irradiated sodium borosilicate glass and simulated waste glass: a perturbed angular correlation spectroscopy study

    Time Differential Perturbed Angular Correlation (TDPAC) has been used to investigate the local structural changes (if any) in Sodium borosilicate (NBS) Glass and Simulated Waste Oxide loaded sodium borosilicat...

    Ashwani Kumar, R. K. Mishra, Y. K. Bhardwaj… in Journal of Radioanalytical and Nuclear Che… (2021)

  5. No Access

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    Retention behaviour of Ba(II) on argillaceous rocks of Cuddapah system

    Argillaceous rock formation of Cuddapah System are under evaluation as the potential host rock for deep geological repository in India. Sorption of Ba(II), as a chemical analogue of 90Sr, on argillaceous rock for...

    Madhuri A. Patel, Aishwarya S. Kar… in Journal of Radioanalytical and Nuclear Che… (2021)

  6. No Access

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    Selective removal of Am(III) and Pu(IV) from analytical waste solutions of quality control operations using extractant encapsulated polymeric beads

    Present study reports simultaneous batch and column extraction of Pu(IV) and Am(III) followed by selective strip** from actual analytical waste solution generated during quality control operations. N, N, N′, N′...

    Shiny S. Kumar, Ankita Rao, K. K. Yadav… in Journal of Radioanalytical and Nuclear Che… (2020)

  7. No Access

    Article

    Development of 99Mo-alfa-benzoin oxime complex as industrial radiotracer for identification of leaky heat exchanger and its validation with 99mTc

    Molybdenum-99 (99Mo), in the form of 99Mo-alfa-benzoin oxime (99Mo-ABO) complex was developed as industrial radiotracer and its performance was tested in a diesel hydro-treater unit of a leading oil refinery. Mai...

    Abhishek K. Sharma, Gaurav Agrahari… in Journal of Radioanalytical and Nuclear Che… (2020)

  8. No Access

    Article

    Determination of 90Sr in environmental samples using solid phase extraction chromatography

    A simple and rapid method based on solid phase extraction chromatography (SPEC) has been developed for the determination of 90Sr in environmental samples. The SPEC method consists of three steps, namely, (1) carb...

    Amar D. Pant, R. Ruhela, B. S. Tomar… in Journal of Radioanalytical and Nuclear Che… (2019)

  9. Article

    Correction to: Effect of phosphate on sorption of Eu(III) by montmorillonite

    On page 538, in second column/line number 5, the value for the cation exchange capacity of the Na-montmorillonite clay is 23 meq per 100 g instead of 87 meq per 100 g.

    Madhuri A. Patel, Aishwarya S. Kar… in Journal of Radioanalytical and Nuclear Che… (2018)

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  10. No Access

    Article

    Recovery of plutonium and cerium from alumina crucible

    Plutonium recovery is inevitable from plutonium bearing alumina crucibles generated over the years as part of carbon analysis during chemical quality control of nuclear fuels. This is a challenging task owing ...

    Aishwarya S. Kar, Ankita Rao, Manjulata Sahu… in Journal of Radioanalytical and Nuclear Che… (2017)

  11. No Access

    Article

    Evaluation of pyridinium-based bifunctional resins for the separation of Pu(IV) from acidic solutions

    Bifunctional resins having pyridinium and methyl ammonium-based dicationic groups, separated by a five carbon spacer, have been prepared by chemical modification of Reillex™ 402 poly(4-vinyl pyridine). Batch s...

    Shiny Suresh Kumar, Sucheta Chatterjee… in Journal of Radioanalytical and Nuclear Che… (2017)

  12. No Access

    Article

    Hyperfine interaction study of pressure induced phase transformations in Hafnia

    Time Differential Perturbed Angular correlation (TDPAC) study of pressure dependent phase transition in HfO2 has been performed for the first time to reveal the change in local structure around Hf atom. The resul...

    Ashwani Kumar, Guruprasad Mandal… in Journal of Radioanalytical and Nuclear Che… (2017)

  13. No Access

    Article

    Effect of phosphate on sorption of Eu(III) by montmorillonite

    Eu(III) sorption by Na-montmorillonite, the principal component of bentonite, has been studied in absence and presence of phosphate under varying experimental conditions of pH, metal ion, phosphate and sorbent...

    Madhuri A. Patel, Aishwarya S. Kar… in Journal of Radioanalytical and Nuclear Che… (2017)

  14. No Access

    Article

    Sorption studies of radionuclides on argillaceous clays of Cuddapah System

    Worldwide argillaceous clays are being studied as promising host rock for nuclear high level waste disposal. Cuddapah argillite is under evaluation for Indian clay rock based repository. Herein characterizatio...

    Madhuri A. Patel, Aishwarya S. Kar… in Journal of Radioanalytical and Nuclear Che… (2017)

  15. No Access

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    Evaluation of sorption capability and aqueous stability of Ba2TiSi2O8 (BTS)

    The present paper, for the first time, reports the application of Ba2TiSi2O8 (BTS) for management of trivalent actinides present in radioactive waste. BTS was synthesized and thoroughly characterized. Uptake of C...

    Aishwarya Soumitra Kar, Manjulata Sahu… in Journal of Radioanalytical and Nuclear Che… (2017)

  16. No Access

    Article

    Speciation of U and Am in sol–gel derived borosilicate glasses by photoluminescence lifetime spectroscopy

    Borosilicate glasses are intended to be the barrier in between the high level nuclear waste and the geosphere. The oxidation state and the coordination geometry of a particular element in the glass influences ...

    M. Mohapatra, V. Natarajan, B. S. Tomar in Journal of Radioanalytical and Nuclear Chemistry (2016)

  17. No Access

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    Distribution coefficients of radionuclides around uranium mining area and effect of different analytical parameters on their determination

    Macroscopic batch sorption study has been carried out to measure distribution coefficient (K d) of uranium, thorium and their daughter products, radium and polonium, on soil samples collec...

    Sumit Kumar, Aishwarya S. Kar, Neetika Rawat… in Journal of Radioanalytical and Nuclear Che… (2015)

  18. No Access

    Article

    Development of methodology for the determination of boron in ThO2 employing spectrophotometry

    Boron was determined in ThO2 employing spectrophotometry using curcumin as complexing agent after dissolution with 85 % ortho phosphoric acid and separation of boron with 10 % 2-ethyl hexane 1,3 diol in CHCl3. Th...

    P. S. Ramanjaneyulu, K. L. Pandey… in Journal of Radioanalytical and Nuclear Che… (2014)

  19. No Access

    Article

    Determination of calcium and iron in silicon and uranium silicide using ion chromatography

    Two separate ion chromatography methods were developed for the determination of calcium and iron in silicon and uranium silicide. A cation exchange separation with conductivity detection was developed for Ca. ...

    M. K. Das, V. V. Raut, S. B. Deb… in Journal of Radioanalytical and Nuclear Che… (2014)

  20. No Access

    Article

    Determination of total gas content and its composition in Indian PFBR blanket pellets

    Total gas content and its composition are important specifications for sintered nuclear fuel pellets particularly in the case of fast breeder reactor fuels. Most commonly, total gas content and its composition...

    P. S. Ramanjaneyulu, Komal Chandra… in Journal of Radioanalytical and Nuclear Che… (2014)

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