Carbon-14 production in the Peach Bottom HTGR core

Technical Report · Tue Jul 01 04:00:00 EDT 1980

DOI:https://doi.org/10.2172/5195030· OSTI ID:5195030

Wichner, R P; Dyer, F F

Carbon-14 concentrations were measured in a variety of core components during the Peach Bottom Surveillance Program. Five fuel element sleeves and spines were dissected to obtain radial concentration profiles at four axial locations. The profiles show that the major part of the /sup 14/C in these graphite components characteristically showed a flat radial distribution across the interior of the member; the balance was found in concentration peaks at each exposed surface. The source of these surface peaks is not fully understood. Concentrations were also determined in five fuel element fission product traps, one removable radial reflector block, and 12 fuel particle pairs taken from a number of axial locations in one fuel element. Estimates of whole-core inventory were made from these concentration determinations.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5195030
• Report Number(s): ORNL-5597
• Country of Publication: United States
• Language: English

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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210300* -- Power Reactors
Nonbreeding
Graphite Moderated
ACTIVITY LEVELS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON ISOTOPES
DISTRIBUTION
ENRICHED URANIUM REACTORS
EVEN-EVEN NUCLEI
GAS COOLED REACTORS
GRAPHITE MODERATED REACTORS
HELIUM COOLED REACTORS
HTGR TYPE REACTORS
ISOTOPES
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PEACH BOTTOM-1 REACTOR
POWER REACTORS
RADIOACTIVITY
RADIOISOTOPES
REACTOR COMPONENTS
REACTOR INTERNALS
REACTORS
SPATIAL DISTRIBUTION
THERMAL REACTORS
YEARS LIVING RADIOISOTOPES