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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...
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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...
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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...
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Article
Mechanistic and thermodynamic aspects of Cs(I) and Sr(II) interactions with smectite-rich natural clay
Sorption of long-lived fission products Cs(I) and Sr(II) by smectite-rich natural clay, originated from western part of India, has been studied by batch sorption method under varying experimental conditions of...
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Article
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...
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Article
Investigation of gamma radiation induced changes in local structure of borosilicate glass by TDPAC and EXAFS
Gamma radiation induced changes in local structure around the probe atom (Hafnium) were investigated in sodium barium borosilicate (NBS) glass, used for immobilization of high level liquid waste generated from...
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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 ...
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Article
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...
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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...
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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. ...
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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...
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Article
Retention behaviour of Cs(I), Sr(II), Tc(VII) and Np(V) on smectite-rich clay
The smectite-rich natural clay is being considered as a backfill and buffer material for Indian repository programme. In the present study, batch sorption measurements have been performed at trace concentratio...
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Article
Kinetics of Pu(IV) sorption by smectite-rich natural clay
Kinetics of sorption of Pu(IV) by smectite-rich clay has been studied at varying metal ion concentrations. Different concentrations were achieved using different isotopes of Pu, namely, 239Pu, 238Pu and 237Pu. 23...
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Article
Probing of complete and incomplete fusion dynamics in heavy-ion collision
Three different types of experiments have been performed to explore the complete and incomplete fusion dynamics in heavy-ion collisions. In this respect, first experiment for the measurement of excitation func...
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Article
Development of ion chromatography and capillary electrophoresis methods for the determination of Li in Li–Al alloy
Two methods were developed for determination Li content in Li–Al alloy by employing ion chromatography (IC) and capillary electrophoresis (CE) without any prior separation of Al matrix. In absence of suitable ...
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Article
Simultaneous determination of Cs and Sr in the high level waste by ion-chromatography
A method based on ion-chromatography has been developed for determination of Cs and Sr in high level waste (HLW) without matrix separation. The acidity of HLW (3 M HNO3) was decreased to 0.01 M by addition of NaO...
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Article
Sorption of americium from low-level liquid wastes by nanocrystalline MnO2
Nanocrystalline MnO2, synthesized by alcoholic hydrolysis of KMnO4, has been studied as a sorbent for removal of americium from low level liquid waste solutions. The synthesized MnO2 was found to have BET surface...
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Article
Estimation of uncertainty in the determination of nitrogen and oxygen in U(Al, Si)3
U(Al, Si)3, an inter-metallic compound, is a proposed fuel in advanced nuclear reactors. Determination of trace amounts of nitrogen and oxygen in this material is an essential requirement for quality assurance. M...
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Article
Estimation of 90Sr in reprocessing streams using pre-packed extraction chromatographic column of 4,4'(5')-bis(tert-butylcyclohexano)-18-crown-6 impregnated on amberlite XAD-7
This paper describes a method for the estimation of 90Sr in various PUREX and THOREX process streams. Radiostrontium present in the sample is loaded on an extraction chromatographic column containing 4,4’(5’)-bis...
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Article
Sorption of plutonium from low level liquid waste using nano MnO2
Nano-crystalline MnO2 has been synthesized by the method of alcoholic hydrolysis of KMnO4 and its potential as a sorbent for plutonium present in the low level liquid waste (LLW) solutions was investigated. The k...
