Purification of selenium from thorium, uranium, radium, actinium and potassium impurities for low background measurements
-
A. V. Rakhimov
,
G. Warot
Summary
A technique of selenium purification from 232Th, 238U, 226,228Ra, 227Ac and 40K was developed. This technique is simple to perform and employs a minimum number of highly pure reagents (bidistilled water, nitric acid). Operations carried out during purification (elution, evaporation) practically exclude losses of the target product (chemical yields of Se > 99%). A test purification of 100 g of selenium was carried out using this technique. The efficiency of this technique was confirmed by low background gamma spectrometry of the purified selenium sample. Distribution coefficients of Th, U, Ra and Ac on DOWEX 50W-×8 cation-exchange resin at different concentrations of selenium and nitric acid were experimentally determinated. Instrumental neutron activation analysis of bidistilled water, deionized water and nitric acid was performed.
© 2013 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
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- Cross-sections of 45Sc(n, 2n)44m,gSc reaction from the reaction threshold to 20 MeV
- Fast neutron spectrum unfolding of a TRIGA Mark II reactor and measurement of spectrum-averaged cross sections: integral tests of differential cross sections of neutron threshold reactions
- Determination of 234U and 238U in seawater samples by alpha spectrometry after concentration of U(VI) onto hydrotalcite and co-precipitation with LaF3
- Substitution of IO3 −, IO4−, SeO3 2−, and SeO42− for CO32− in Na4[UO2(CO3)3]
- Structure and spectroscopy of uranyl salicylaldiminate complexes
- A comparison between the chemical behaviour of lead-gold and lead-bismuth eutectics towards 316L stainless steel
- Effect of temperature on the solubility and solid phase stability of zirconium hydroxide
- Purification of selenium from thorium, uranium, radium, actinium and potassium impurities for low background measurements
- Analysis of long-lived radionuclides produced by proton irradiation in lead targets – γ -measurements
- Feasibility studies for production of 89Sr in the Fast Breeder Test Reactor (FBTR)
- Synthesis of I-131 labelled iodine species relevant during severe nuclear accidents in light water reactors
Articles in the same Issue
- Inhalt
- Cross-sections of 45Sc(n, 2n)44m,gSc reaction from the reaction threshold to 20 MeV
- Fast neutron spectrum unfolding of a TRIGA Mark II reactor and measurement of spectrum-averaged cross sections: integral tests of differential cross sections of neutron threshold reactions
- Determination of 234U and 238U in seawater samples by alpha spectrometry after concentration of U(VI) onto hydrotalcite and co-precipitation with LaF3
- Substitution of IO3 −, IO4−, SeO3 2−, and SeO42− for CO32− in Na4[UO2(CO3)3]
- Structure and spectroscopy of uranyl salicylaldiminate complexes
- A comparison between the chemical behaviour of lead-gold and lead-bismuth eutectics towards 316L stainless steel
- Effect of temperature on the solubility and solid phase stability of zirconium hydroxide
- Purification of selenium from thorium, uranium, radium, actinium and potassium impurities for low background measurements
- Analysis of long-lived radionuclides produced by proton irradiation in lead targets – γ -measurements
- Feasibility studies for production of 89Sr in the Fast Breeder Test Reactor (FBTR)
- Synthesis of I-131 labelled iodine species relevant during severe nuclear accidents in light water reactors
