US EPA

2840708 

Journal Article 

Determination of Uranium, Plutonium, Cesium and Europium Isotopes in Nuclear Fuel Claddings by Isotope Dilution Mass Spectrometry and gamma-Ray Spectrometry 

Kim, JSuk; Jeon, YS; Park, YS; Park, JaiIl; Park, YJ 

2014 

Yes 

Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 

26 

13 

4077-4080 

WOS:000343763700074 

Isotope dilution mass spectrometric (IDMS) and gamma-ray spectrometric (GRS) methods have been used for the determination of uranium, plutonium, cesium and europium isotopes in cladding from pressurized water reactor nuclear fuel irradiated in a power reactor. A dissolution of cladding samples was performed through a two-step procedure, washing with 8 M HNO3 at 90 degrees C and dissolving with 2 M HF at 25 degrees C followed by dissolving with aqua regia at 90 degrees C. After the dissolution procedure, the chemical composition of insoluble residue (< 2 wt. %) was identified using a gamma-ray spectrometry. The isotopic compositions and their contents of uranium and plutonium and the activities of cesium and europium isotopes found in the dissolving and washing solutions of the cladding specimen from high burnup nuclear fuel, were compared with those found in a dissolving and washing solutions of the cladding specimen from low burnup nuclear fuel. 

Isotope dilution mass spectrometry; gamma-Ray spectrometry; Fuel cladding; Uranium; Plutonium; Cesium; Europium