Isolation of radionuclides from thorium targets irradiated with 300-MeV protons

Filosofov, D.V.; Rakhimov, A. V.; Bozhikov, G. A.; Karaivanov, D. V.; Lebedev, N.A.; Norseev, Yu.V.; Sadikov, I. I.

doi:10.1134/s1066362213040127

Cited by 17 publications

(10 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Isolation of Ba from the irradiated target was performed as described elsewhere. [25] All proton bombardments were performed at the Phasotron facilities at the Joint Institute of Nuclear Research (JINR), Dubna, Russian Federation. Stock solutions were obtained according to the acids used.…”

Section: Radionuclides For Distribution Coefficients and Column Separmentioning

confidence: 99%

Behavior of Actinium, Alkaline, and Rare Earth Elements in Sr-Resin/Mineral Acid Systems

Filosofov

Lebedev

Radchenko

et al. 2015

Solvent Extraction and Ion Exchange

View full text Add to dashboard Cite

In this work, the interactions between the divalent alkaline earth elements (AEE) (Sr, Ba, Ra), the trivalent rare earth elements (REE) (Ce-Lu, Y), and Ac(III) with Sr-resin were investigated in the presence of HNO 3 , HCl, HBr, HClO 4 , and HPF 6 . Distribution coefficients of these ions on the Sr-resin were determined under batch-loading conditions. Lastly, online column separations were performed to demonstrate the utility of these systems. Substantial differences in the behavior of the ions in solutions comprised of the five different acids were observed. These differences can partly be explained by a combination of ion exchange (primary) and extraction (solvation) mechanisms. From a practical point of view, the Srresin/HClO 4 or Sr-resin/HPF 6 systems were demonstrated to be effective for the separation and purification of the different groups of the elements.

show abstract

Section: Radionuclides For Distribution Coefficients and Column Separmentioning

confidence: 99%

Behavior of Actinium, Alkaline, and Rare Earth Elements in Sr-Resin/Mineral Acid Systems

Filosofov

Lebedev

Radchenko

et al. 2015

Solvent Extraction and Ion Exchange

View full text Add to dashboard Cite

show abstract

“…According to a paper published by Pourmand et al [ 26 ], Nb, Zr, Sn and Sb are strongly retained on DGA resin in high concentrations of HCl. Ruthenium, however is not strongly retained on DGA resin or in TODGA extraction systems with HCl or HNO 3 solutions and several papers discuss fission product behavior in these systems [ 14 , 27 – 32 ]. Therefore a DGA column was employed to remove these contaminants.…”

Section: Resultsmentioning

confidence: 99%

Separation of 103Ru from a proton irradiated thorium matrix: A potential source of Auger therapy radionuclide 103mRh

Mastren¹,

Radchenko²,

Hopkins³

et al. 2017

PLoS ONE

View full text Add to dashboard Cite

Ruthenium-103 is the parent isotope of 103mRh (t1/2 56.1 min), an isotope of interest for Auger electron therapy. During the proton irradiation of thorium targets, large amounts of 103Ru are generated through proton induced fission. The development of a two part chemical separation process to isolate 103Ru in high yield and purity from a proton irradiated thorium matrix on an analytical scale is described herein. The first part employed an anion exchange column to remove cationic actinide/lanthanide impurities along with the majority of the transition metal fission products. Secondly, an extraction chromatographic column utilizing diglycolamide functional groups was used to decontaminate 103Ru from the remaining impurities. This method resulted in a final radiochemical yield of 83 ± 5% of 103Ru with a purity of 99.9%. Additionally, measured nuclear reaction cross sections for the formation of 103Ru and 106Ru via the 232Th(p,f)103,106Ru reactions are reported within.

show abstract

“…The dead time of the detector was always kept below 7 %. [16] The acquisition of Ln(III) for the research involved dissolving the irradiated Ta target and separating the Ln(III) isotopes as a group prior to separating the individual Ln(III) from one another. This was accomplished by placing ammonium α-hydroxyisobutyrate in a column filled with the small cation-exchange resin Aminex A6.…”

Section: Methodsmentioning

confidence: 99%

Sorption of Rare-Earth Elements and Ac on UTEVA Resin in Different Acid Solutions

Marinov

Marinova

Milanova

et al. 2017

Solvent Extraction and Ion Exchange

Self Cite

View full text Add to dashboard Cite

The distribution of some rare-earth elements (REE) on UTEVA resin was determined from different concentrations of inorganic (HCl, HNO 3 , HClO 4 , HPF 6) and one organic acid-CCl 3 COOH. Low sorption of all REE in the range of 1M-5M HNO 3 was observed. In more concentrated HNO 3 , a rapid increase of the distribution coefficients (K d) was noticed with an increase in the atomic number of the lanthanides as well as in Y and Sc. The system UTEVA-CCl 3 COOH showed a higher selectivity for Eu(III). Chromatographic elution profiles were checked in order to confirm the obtained K d values. All solutions containing the chosen radionuclides were evaporated to dryness under an IR lamp.

show abstract

Isolation of radionuclides from thorium targets irradiated with 300-MeV protons

Cited by 17 publications

References 15 publications

Behavior of Actinium, Alkaline, and Rare Earth Elements in Sr-Resin/Mineral Acid Systems

Behavior of Actinium, Alkaline, and Rare Earth Elements in Sr-Resin/Mineral Acid Systems

Separation of 103Ru from a proton irradiated thorium matrix: A potential source of Auger therapy radionuclide 103mRh

Sorption of Rare-Earth Elements and Ac on UTEVA Resin in Different Acid Solutions

Contact Info

Product

Resources

About