Published June 2009 | Version v1
Journal article Metadata-only

Analysis of influence of decay-cooling time on on-line burnup measurement of HTR-PM

Creators

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

Description

High Temperature gas-cooled Reactor-Pebble bed Modular (HTR-PM) requires a online burnup assay system to check whether a fuel pebble should be discharged from fuel circulation according to its burnup value. Each pebble that has flowed out of the core is going to undergo decay and cooling before the burnup measurement, so the interval of decay-cooling time influences the burnup measurement. The paper analyzes this effect using the isotopic depletion and decay analysis code of KORIGEN and particle transport code of MCNP. The result shows that the decay-cooling time of 50 hours can meet the HTR-PM requirement well with the choice of suitable γ spectrum analysis method. (authors)

Additional details

Publishing Information

Journal Title
Nuclear Power Engineering
Journal Volume
30
Journal Issue
3
Journal Page Range
p. 43-46
ISSN
0258-0926

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
43075359
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
AFTER-HEAT REMOVAL; BURNUP; COOLING; COOLING TIME; DECAY; FUEL ELEMENTS; FUELS; GAMMA SPECTRA; HTGR TYPE REACTORS; HTR-10 REACTOR; ON-LINE MEASUREMENT SYSTEMS; PARTICLES; TRANSPORT
Descriptors DEC
ENRICHED URANIUM REACTORS; EXPERIMENTAL REACTORS; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HELIUM COOLED REACTORS; HTGR TYPE REACTORS; ON-LINE SYSTEMS; REACTOR COMPONENTS; REACTORS; REMOVAL; RESEARCH AND TEST REACTORS; SPECTRA; TEST FACILITIES; TEST REACTORS

Optional Information

Notes
3 figs., 2 tabs., 4 refs.