Standard Practice for The Ion Exchange Separation of Small Volume Samples Containing Uranium, Americium, and Plutonium Prior to Isotopic Abundance and Content Analysis

Importancia y uso:

5.1 Uranium and plutonium are used in nuclear reactor fuel and must be analyzed to ensure that they meet acceptance criteria for isotopic composition as described in Specifications C833 and C1008. The criteria are set by mutual agreement between the manufacturer and end user (or between buyer and seller). This standard practice is used to separate chemically the isobaric interferences from ²³⁸U and ²³⁸Pu and from ²⁴¹Am and ²⁴¹Pu, and from other impurities prior to isotopic abundance determination by TIMS.

5.2 In facilities where perchloric acid use is authorized, the separation in Test Method C698 may be used prior to isotopic abundance determination. Uranium and plutonium content as well as isotopic abundances using TIMS can be determined by using this separation practice and by following Test Methods C698, C1625, or C1672.

Subcomité:

C26.05

Referida por:

C1415-18, C1672-23

Volúmen:

12.01

Número ICS:

27.120.30 (Fissile materials and nuclear fuel technology)

Palabras clave:

ion exchange; mass spectrometry; plutonium; plutonium isotopic abundance analysis; thermal ionization mass spectrometry; uranium; uranium isotopic abundance analysis;