Determination of 234U Content in Uranium from Different Deposits
- 55 Downloads
234U content fluctuations due to many factors are observed in natural uranium obtained for nuclear power production needs. At the same time, the specifications for enriched uranium provide strict requirements for uranium content. These requirements can be satisfied only with timely monitoring of uranium for enrichment.
To this end, a method of mass-spectrometric determination of uranium content in samples of uranium-containing ores was developed. The 234U content in ore samples and concentrates from 20 deposits, located in Russia, Kazakhstan, Ukraine, Uzbekistan, Czechoslovakia, and Germany, was determined.
KeywordsRussia Uranium Kazakhstan 234U Power Production
Unable to display preview. Download preview PDF.
- 1.“C787-96 standard specification for uranium hexafluoride for enrichment,” in: Annual Book of ASTM Standards, 12.01, 202–204 (1997).Google Scholar
- 2.“C996-96 standard specification for uranium hexafluoride enriched to less than 5% 235U,” ibid., pp. 352–354.Google Scholar
- 3.ICRP Recommendations No. 38., Decay Schemes of Radionuclides. Energy and Intensity of Radiation [Russian translation], Énergoatomizdat, Moscow (1987).Google Scholar
- 4.P. I. Chalov, Isotopic Fractionation of Natural Uranium, ILIM, Frunze (1975).Google Scholar
- 5.M. Ketterer and C. Khourey, “High precision determination of 234U/238U activity ratios in natural waters and carbonates by ICPMS,” In: Applications of ICPMS to Radionuclide Determinations, Vol. 2, ASTM STP 1344 (1998), pp. 120–136.Google Scholar
- 6.D. Smith and J. Carter, “A simple method to enhance thermal emission of metal ions,” Intern. J. Mass Spectrom. Ion Phys., 40, 211–215 (1981).Google Scholar
- 7.J. Rosholt, E. Harshman, W. Shilds, and E. Garner, “Isotopic fractionation of uranium related to roll features in sandstone, Shirley Basin, Wyoming,” Economic Geology, 59, 570–585 (1964).Google Scholar