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K-Edge X-ray Fluorescence Analysis for Actinide and Heavy Elements Solution Concentration Measurements

  • David C. Camp (a1)

Extract

There are currently no plans for the commercial reprocessing of nuclear fuel in the U.S. This is not the case in Japan, England, France, Germany, or the USSR. The U.S. does, however, include the reprocessing of spent nuclear fuel as a part of its defense programs. The Office of Safeguards and Security of DOE's Defense Programs has funded the development and optimization of numerous nondestructive analysis techniques including K-edge x-ray fluorescence analysis. This paper reviews some of the implementation efforts resulting from R&D supported by that office.

In 1979, the concept of using K-edge x-ray fluorescence analysis (K XRFA) for the analysis of actinide solution concentrations was first presented. K XRFA using small radioactive Co-57 sources has been shown to be a practical way to measure actinide solution concentrations in offline, at-line, or on-line configurations. The experimental methodology is elegant and the hardware is simple.

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1. Camp, D. C. and Ruhter, W.D., Nondestructive, Energy Dispersive X-Ray Fluorescence Analysis of Actinide Stream Concentrations from Reprocessed Nuclear Fuel, Adv. in X-Ray Analysis, 23:163 (1980).
2. Camp, D. C., Ruhter, W. D., and MacMurdo, K.W., Determination of Actinide Process and Product Stream Concentrations Off-Line or At-Line by Energy Dispersive X-Ray Fluorescence Analysis, Proc. of 3rd ESARDA Symposiumon Safeguards and Nuclear Material Management, Karlsruhe, F. R. Germany, 6-8 May 1981, p. 155159 (1981).
3. Camp, D. C., Ruhter, W. D., Johnson, C. E., and Piper, T. C., Near-RealTime Actinide Concentrations Via Energy Dispersive XRFA for Process Control and Material Accountability, Proc. of Am. Hue. Soc. and Inst. Nuc. Mat. Mgrs. Conf. (1984) and UCRL-90037 (1983).
4. Henderson, B. C., Lee, R. S., Huff, G. A., and Camp, D.C., Energy Dispersive XRFA for On-Line U Concentration Measurements, “Analytical Chemistry in Nuclear Technology,” Lyon, W. S., ed., Ann Arbor Science, p. 253260 (1982).
5. Camp, D. C., Ruhter, W. D., Benjamin, S., Nondestructive, Energy Dispersive XRFA of Product Stream Concentrations from Reprocessed LWR Fuels, UCRL-52616, LLNL Report (1979).
6. Johns, R. A., Parry, R., Walker, V., Camp, D. C., Ruhter, W. D., and Eckels, D., On-Line Analysis of Pu by Energy Dispersive X-Ray Fluorescence, Proc. of 25th Ann Mtg. of the Inst. Nuc. Mat. Mgrs. (1984).

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