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Radiochemical determination of 41Ca in nuclear reactor concrete

Veröffentlicht/Copyright: 21. Dezember 2007
Radiochimica Acta
Aus der Zeitschrift Radiochimica Acta Band 93 Heft 9-10

Summary

A simple analytical method for simultaneous determination of 41Ca and 90Sr in nuclear reactor concrete was developed. Different methods such as acid leaching and alkali fusion were investigated for the decomposition of the samples and for the separation of Ca and Sr from the matrix. Hydroxide and carbonate precipitation was used to separate Ca and Sr from the matrix elements as well as from each other. The chemical yields of the separation procedures for 41Ca and 90Sr are 80–90% and the decontamination factors for all interfering radionuclides are more than 104. The detection limits of the analytical method for 41Ca and 90Sr are 0.020 and 0.015 Bq, respectively. The methods developed here were used in the determination of 41Ca in heavy concrete from two concrete cores in the Danish research reactor DR-2.

Keywords: 41Ca; 90Sr; Concrete; Radiochemical analysis; Decommissioning; Liquid scintillation counting
Received: 2004-12-1
Accepted: 2005-3-3
Published Online: 2007-12-21
Published in Print: 2005-9-1

© Oldenbourg Wissenschaftsverlag, München

Artikel in diesem Heft

  1. Preface: The Sixth International Conference on Nuclear and Radiochemistry (NRC-6)
  2. Target dependence of beryllium fragment production in neutron- and alpha-induced nuclear reactions at intermediate energies
  3. Influence of reaction channel on the isomeric cross-section ratio
  4. Search for α-decay of 229mTh produced from 229Ac β-decay following 232Th(γ, p2n) reaction
  5. Search for the decay of 229mTh by photon detection
  6. Energy shift of electronic X-rays emitted from pionic atoms
  7. Chemical studies on rutherfordium (Rf) at JAERI
  8. The effect of parameter uncertainty on blind prediction of Np(V) sorption onto hematite using the Diffuse Double Layer Model
  9. Influence of β radiation on UO2 dissolution at different pH values
  10. Development of a gas-jet-coupled multitarget system for multitracer production
  11. Determination of nuclear constants of reactions induced on zinc by short irradiations with the epithermal and fast components of a reactor neutron spectrum
  12. Fission spectrum averaged cross section measurements of some neutron threshold reactions of relevance to medical radionuclide production
  13. Experimental measurements and nuclear model calculations on the excitation functions of natCe(3He, xn) and 141Pr(p, xn) reactions with special reference to production of the therapeutic radionuclide 140Nd
  14. Investigation of the production of the therapeutic radioisotope 114mIn through proton and deuteron induced nuclear reactions on cadmium
  15. Highly-pure radioisotopes for life science researches produced at the FLNR JINR accelerators
  16. Production of 111In from an In/In2O3 target
  17. A no-carrier-added 72Se/72As radionuclide generator based on solid phase extraction
  18. Synthesis of 18F-labeled acyclic purine and pyrimidine nucleosides intended for monitoring gene expression
  19. Tumor cell and tumor vasculature targeted liposomes for neutron capture therapy
  20. Chemical stabilization of recoil 56Mn in MnSO4-KClO4 mixed crystals following (n, γ) process
  21. Investigation on the chemical behaviour of a crown ether irradiated in high gamma radiation fields
  22. Sorption of 99MoO42- ions on commercial hydrotalcites
  23. Radiochemical determination of 41Ca in nuclear reactor concrete
  24. Ion chromatographic analysis of aqueous iodine species by conductivity and radioactivity measurements
  25. Determination of actinides and 90Sr in spent ion exchange resins
  26. Liquid–liquid distribution studies on moderately labile metal chelates. Kinetics of hydrolysis of tris(thenoyltrifluoroacetonate)thallium(III)
  27. Determination of neptunium in soil by ICP-MS
  28. Determination of heavy metals in aerosol fractions of different particle sizes from the healing gallery of Badgastein (Austria)
  29. Positron emission tomography for modelling of geochemical transport processes in clay
https://doi.org/10.1524/ract.2005.93.9-10.611
Schlagwörter für diesen Artikel
41Ca; 90Sr; Concrete; Radiochemical analysis; Decommissioning; Liquid scintillation counting

Artikel in diesem Heft

  1. Preface: The Sixth International Conference on Nuclear and Radiochemistry (NRC-6)
  2. Target dependence of beryllium fragment production in neutron- and alpha-induced nuclear reactions at intermediate energies
  3. Influence of reaction channel on the isomeric cross-section ratio
  4. Search for α-decay of 229mTh produced from 229Ac β-decay following 232Th(γ, p2n) reaction
  5. Search for the decay of 229mTh by photon detection
  6. Energy shift of electronic X-rays emitted from pionic atoms
  7. Chemical studies on rutherfordium (Rf) at JAERI
  8. The effect of parameter uncertainty on blind prediction of Np(V) sorption onto hematite using the Diffuse Double Layer Model
  9. Influence of β radiation on UO2 dissolution at different pH values
  10. Development of a gas-jet-coupled multitarget system for multitracer production
  11. Determination of nuclear constants of reactions induced on zinc by short irradiations with the epithermal and fast components of a reactor neutron spectrum
  12. Fission spectrum averaged cross section measurements of some neutron threshold reactions of relevance to medical radionuclide production
  13. Experimental measurements and nuclear model calculations on the excitation functions of natCe(3He, xn) and 141Pr(p, xn) reactions with special reference to production of the therapeutic radionuclide 140Nd
  14. Investigation of the production of the therapeutic radioisotope 114mIn through proton and deuteron induced nuclear reactions on cadmium
  15. Highly-pure radioisotopes for life science researches produced at the FLNR JINR accelerators
  16. Production of 111In from an In/In2O3 target
  17. A no-carrier-added 72Se/72As radionuclide generator based on solid phase extraction
  18. Synthesis of 18F-labeled acyclic purine and pyrimidine nucleosides intended for monitoring gene expression
  19. Tumor cell and tumor vasculature targeted liposomes for neutron capture therapy
  20. Chemical stabilization of recoil 56Mn in MnSO4-KClO4 mixed crystals following (n, γ) process
  21. Investigation on the chemical behaviour of a crown ether irradiated in high gamma radiation fields
  22. Sorption of 99MoO42- ions on commercial hydrotalcites
  23. Radiochemical determination of 41Ca in nuclear reactor concrete
  24. Ion chromatographic analysis of aqueous iodine species by conductivity and radioactivity measurements
  25. Determination of actinides and 90Sr in spent ion exchange resins
  26. Liquid–liquid distribution studies on moderately labile metal chelates. Kinetics of hydrolysis of tris(thenoyltrifluoroacetonate)thallium(III)
  27. Determination of neptunium in soil by ICP-MS
  28. Determination of heavy metals in aerosol fractions of different particle sizes from the healing gallery of Badgastein (Austria)
  29. Positron emission tomography for modelling of geochemical transport processes in clay
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