Published May 2014 | Version v1
Journal article Metadata-only

Calculation of radioactive activated source term for decommissioned reactor

Creators

  • 1. School of National Defense Science and Technology, Sothwest University of Science and Technology, Mianyang (China)
  • 2. Nuclear Power Institute of China, Chengdu (China)
  • 3. Fundamental Science on Nuclear Waste and Environmental Security Laboratory, Southwest University of Science and Technology, Mianyang (China)

Description

The calculation model of radioactive activated source term for decommissioned reactor was set up, and the validity of the model was verified by critical calculation. The significance of layering calculation and stepping calculation for the area far from the reactor core was analyzed by MCNP code. Using the combination of MCNP and ORIGEN codes, the specific activities of 60Co of reactor core components, such as the reactor support skirt, the samples of the inner and outer steel plates of the lead support barrel and the pre-installed sample on the outer part of the primary water barrel, were calculated specifically. The deviation between the calculation value and measurement value meets the engineering design requirements, and this shows that the model and the calculation method for calculating the radioactive activated source term for such a decommissioned reactor are adequate. (authors)

Additional details

Identifiers

DOI
10.7538/yzk.2014.48.05.0893;

Publishing Information

Journal Title
Atomic Energy Science and Technology
Journal Volume
48
Journal Issue
5
Journal Page Range
p. 893-897
ISSN
1000-6931

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
48088496
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
ACTIVITY LEVELS; CALCULATION METHODS; COBALT 60; CRITICALITY; DESIGN; LAYERS; LEAD; M CODES; PLATES; REACTOR CORES; REACTOR DECOMMISSIONING; SOURCE TERMS; STEELS; SUPPORTS
Descriptors DEC
ALLOYS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBON ADDITIONS; COBALT ISOTOPES; COMPUTER CODES; DECOMMISSIONING; ELEMENTS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IRON ALLOYS; IRON BASE ALLOYS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MECHANICAL STRUCTURES; METALS; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; RADIOISOTOPES; REACTOR COMPONENTS; REACTOR LIFE CYCLE; TRANSITION ELEMENT ALLOYS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
6 figs., 1 tab., 3 refs.; http://dx.doi.org/10.7538/yzk.2014.48.05.0893