Standard method of test for atom percent fission in uranium fuel (radiochemical method)

Journal Article · Wed Jan 01 04:00:00 EST 1975 · Annu. Book ASTM Stand.; (United States)

OSTI ID:7283109

The determination of /sup 137/Cs to U ratio in reactor fuels after irradiation provides a measure of the U atom percent fission. The irradiated fuels are aged for a sufficient period of time to reduce the /sup 136/Cs activity to a small amount through decay. Due to the growth of /sup 134/Cs resulting from the neutron capture by /sup 133/Cs, the procedure is limited to samples exposed to less than0.6 x 10/sup 21/ nvt. Preferably, the fuel cladding is leached or dissolved with the fuel to maintain the true ratio of fission product /sup 137/Cs to U. The /sup 137/Cs is separated by precipitation with carrier as either CsClO/sub 4/ from a solution of ethyl alcohol and HClO/sub 4/ or as Cs/sub 2/PtCl/sub 6/ from a HCl-ethyl alcohol solution. The /sup 137/Cs is then measured by ..gamma.. spectrometry. (BLM)

• OSTI ID: 7283109
• Journal Information: Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 45; ISSN ASTSA
• Country of Publication: United States
• Language: English

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ACTINIDES
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BURNUP
CESIUM 137
CESIUM ISOTOPES
CHEMICAL ANALYSIS
ELEMENTS
FISSION PRODUCTS
FUEL ELEMENTS
GAMMA SPECTROSCOPY
ISOTOPES
METALS
NUCLEI
ODD-EVEN NUCLEI
RADIOACTIVE MATERIALS
RADIOCHEMICAL ANALYSIS
RADIOISOTOPES
REACTOR COMPONENTS
SPECTROSCOPY
URANIUM
YEARS LIVING RADIOISOTOPES