Burnup evaluation of spent PWR fuel by measuring gamma-ray of fission product Cs-137
- 1. Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)
Description
Spent PWR fuel rods have been scanned axially and sectionally to measure the relative gamma-ray intensity of Cs-137 and then burnups of the scanned rods determined by measuring Nd-148 which has been chemically separated. From these experimental results, a linear relation(LR) between the gamma-ray intensity of Cs-137 and the burnup in the range of 10-35 GWD/MTU was obtained. In order to validate the LR, the Cs-137 gamma-ray intensity of unknown sample was nondestructively measured and the burnup obtained by the LR was compared with that of the Nd-148 method. It is revealed that the results from both methods are in good agreement, and thus it seems to be possible to estimate the burnup of spent PWR fuel rod by measuring nondestructively gamma-rav of fission product Cs-137. (Author)
Additional details
Publishing Information
- Journal Title
- Journal of the Korean Nuclear Society
- Journal Volume
- 24
- Journal Issue
- 2
- Journal Page Range
- p. 178-182.
- ISSN
- 0372-7327
- CODEN
- WJHKAW
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 24038668
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Descriptors DEI
- BURNUP; CESIUM 137; CHEMICAL ANALYSIS; FISSION PRODUCTS; FUEL RODS; GAMMA RADIATION; NEODYMIUM 148; PWR TYPE REACTORS; SPENT FUELS
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; ELECTROMAGNETIC RADIATION; ENERGY SOURCES; ENRICHED URANIUM REACTORS; EVEN-EVEN NUCLEI; FUEL ELEMENTS; FUELS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; ISOTOPES; MATERIALS; NEODYMIUM ISOTOPES; NUCLEAR FUELS; NUCLEI; ODD-EVEN NUCLEI; POWER REACTORS; RADIATIONS; RADIOACTIVE MATERIALS; RADIOISOTOPES; RARE EARTH NUCLEI; REACTOR COMPONENTS; REACTOR MATERIALS; REACTORS; STABLE ISOTOPES; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; YEARS LIVING RADIOISOTOPES