Published November 2018 | Version v1
Journal article Metadata-only

Impacts of 240Pu self-shielding effect and uncertainties of σ(n,γ) at resonance energy on the reactivity controllability in HTGR inert matrix fuel

Creators

  • 1. Tokyo Institute of Technology, Tokyo (Japan)

Description

The resonance (n,γ) reaction of 240Pu is one of dominant phenomena to the self-shielding effect and the reactivity controllability in plutonium fuel for high temperature gas cooled reactors (HTGRs) aiming to deep-burning. Impacts of the mitigation of the self-shielding effect and nuclear data uncertainties for the resonance (n,γ) reaction of 240Pu on the reactivity controllability were investigated for various fuel design using MVP code. k∞ decreased from 1.3 to 1.05 and reactivity fluctuation decreased from 30% to 6% in the proposed inert matrix fuel (IMF) design with a dilution of the TRU oxide kernel and the neutron spectrum control because of mitigation of 240Pu self-shielding effect at 1.056-eV. (author)

Availability note (English)

Available from http://dx.doi.org/10.15669/pnst.5.100

Additional details

Identifiers

DOI
10.15669/pnst.5.100;

Publishing Information

Journal Title
Progress in Nuclear Science and Technology
Journal Volume
5
Journal Page Range
p. 100-103
ISSN
2185-4823

Conference

Title
International conference on science and technology of actinide and transactinide elements
Acronym
Actinides 2017
Dates
9-14 Jul 2017
Place
Sendai, Miyagi (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
50023737
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BURNUP; COMPUTERIZED SIMULATION; FISSION; FUEL PARTICLES; GRAPHITE; HIGH-LEVEL RADIOACTIVE WASTES; HTGR TYPE REACTORS; MONTE CARLO METHOD; NEUTRON FLUX; NEUTRON TRANSPORT; NUCLEAR DATA COLLECTIONS; NUCLEAR FUELS; PLUTONIUM 240; SELF-SHIELDING; TRANSURANIUM ELEMENTS
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; CALCULATION METHODS; CARBON; ELEMENTS; ENERGY SOURCES; EVEN-EVEN NUCLEI; FUELS; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HEAVY NUCLEI; ISOTOPES; MATERIALS; MINERALS; NEUTRAL-PARTICLE TRANSPORT; NONMETALS; NUCLEAR REACTIONS; NUCLEI; PLUTONIUM ISOTOPES; RADIATION FLUX; RADIATION TRANSPORT; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; RADIOISOTOPES; REACTOR MATERIALS; REACTORS; SIMULATION; SPONTANEOUS FISSION RADIOISOTOPES; WASTES; YEARS LIVING RADIOISOTOPES

Optional Information

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