Rapid Radiochemical Method for Actinides in Emergency ... - Eichrom

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U results for concrete samples (with MAPEP 18 standard)Sample ID232 U Yield234 U Measured238 U Measured(%) mBq g -1 mBq g -11 78.4 33.5 36.42 77.6 26.5 30.93 76.3 24.3 30.54 80.5 21.7 28.65 71.5 26.1 29.4Avg. 76.9 26.4 31.2A Corr. Avg. 25.8 30.51SD 3.4 4.4 3.1%RSD 4.4 16.7 9.8Reference 28.4 29.6% Difference -7.0 5.2avg 238 U in unspiked 1g sample = 0.596 mBqavg 234 U in unspiked 1g sample = 0.674 mBqA average spiked sample result corrected for unspiked content18
Pu and Np spectra for concrete sample50Pu-23640COUNTS3020Np-237Pu-239Pu-2381003500 4000 4500 5000 5500 6000 6500Tracer Yield = 99.8% Count Time = 16 hours FWHM = 28.4 keV19
Page 3 and 4: Fukushima Decontamination• Fukush
Page 5: Literature• R. Weinreich, S. Bajo
Page 15 and 16: U results for brick samples ( with
Page 17: Am and Cm results for concrete samp
Page 21 and 22: U isotope spectra for concrete samp
Page 23 and 24: Move Pu from TEVA to DGA (ICP-MS)UT

Rapid Radiochemical Method for Actinides in Emergency ... - Eichrom

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