Published August 2008 | Version v1
Journal article Metadata-only

Effect 239Pu in burnup measurement process in HTR-PM

Creators

  • 1. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing (China)
  • 2. China Institute of Atomic Energy, Beijing (China)

Description

The portion of 239Pu in the nuclear fuel cycle of gas cooled high temperature reactor-pebble bed module (HTR-PM) is very important at the high level of burnup, which certainly influences the online burnup measurement. This problem was discussed in the paper.When the expected average burnup was 80000 (MW.d) /t (U), the calculation result showed that the energy release from 239Pu fission contributed to the burnup of fuel pebble by 26.7% and the activity of 137Cs and 134Cs from 239Pu fission is about 27.2% and 23.2%, respectively. Further analysis also showed that it is better to determinate the burnup by the activity of 137Cs in the pebble than by the activity ratio of 134Cs/137Cs. (authors)

Additional details

Publishing Information

Journal Title
Nuclear Power Engineering
Journal Volume
29
Journal Issue
4
Journal Page Range
p. 88-92
ISSN
0258-0926

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
43075213
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
BURNUP; CESIUM 134; CESIUM 137; FISSION; HTR-10 REACTOR; MEASURING METHODS; NUCLEAR FUELS; PLUTONIUM 239; TEMPERATURE RANGE 0400-1000 K
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ENERGY SOURCES; ENRICHED URANIUM REACTORS; EVEN-ODD NUCLEI; EXPERIMENTAL REACTORS; FUELS; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HEAVY NUCLEI; HELIUM COOLED REACTORS; HOURS LIVING RADIOISOTOPES; HTGR TYPE REACTORS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATERIALS; NUCLEAR REACTIONS; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PLUTONIUM ISOTOPES; RADIOISOTOPES; REACTOR MATERIALS; REACTORS; RESEARCH AND TEST REACTORS; SPONTANEOUS FISSION RADIOISOTOPES; TEMPERATURE RANGE; TEST FACILITIES; TEST REACTORS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
5 figs., 2 tabs., 8 refs.