Gamma-ray emission tomographic examinations of TMI-2 fuel debris

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7270648

Akers, D W; Hartwell, J; Hobbins, R R; Makowitz, H

An examination method developed at the Idaho National Engineering Laboratory (INEL) is being used to determine the distribution of gamma-ray emitting radionuclides in high density reactor fuel and prior molten materials. This paper presents the results of the gamma-ray emission tomographic examinations performed on samples of prior molten materials from the TMI-2 core and an evaluation of the materials chemistry, based on elemental and SEM/WDX examinations of the samples, that resulted in the observed fission product behavior. The sample examination of a metallurgical cross section from a large particle of prior molten fuel from the lower head of the reactor has been completed. The results indicate substantial relocation of fission products in the debris and the probable accumulation of some in various phases of the material. 4 refs., 7 figs., 1 tab.

• Research Organization: EG and G Idaho, Inc., Idaho Falls, ID (USA)
• Sponsoring Organization: DOE/NE
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 7270648
• Report Number(s): EGG-M-88237; CONF-8806143--11; ON: DE90006985
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
ALKALI METAL ISOTOPES
ANTIMONY 125
ANTIMONY ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CERIUM 144
CERIUM ISOTOPES
CESIUM 137
CESIUM ISOTOPES
COBALT 60
COBALT ISOTOPES
COMPILED DATA
COOLING SYSTEMS
CORIUM
DATA
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
ECONOMIC ANALYSIS
ECONOMICS
ENERGY SYSTEMS
ENERGY TRANSFER
ENRICHED URANIUM REACTORS
ENVIRONMENTAL TRANSPORT
EUROPIUM 154
EUROPIUM ISOTOPES
EVEN-EVEN NUCLEI
FISSION PRODUCTS
FLUID MECHANICS
FUEL ELEMENTS
GAMMA SPECTROSCOPY
HEAT TRANSFER
HETEROGENEOUS EFFECTS
HYDRAULICS
IMAGE PROCESSING
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINE 129
IODINE ISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LOSS OF COOLANT
MASS TRANSFER
MATERIALS
MATERIALS TESTING
MECHANICS
MINUTES LIVING RADIOISOTOPES
MORPHOLOGY
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PHOTOGRAPHY
POWER REACTORS
PROCESSING
PWR TYPE REACTORS
RADIOACTIVE MATERIALS
RADIOISOTOPES
RADIONUCLIDE MIGRATION
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR CORES
REACTOR SAFETY
REACTORS
RUTHENIUM 106
RUTHENIUM ISOTOPES
SAFETY
SAMPLING
SPECTROSCOPY
STRUCTURAL MODELS
TESTING
THERMAL REACTORS
THREE MILE ISLAND-2 REACTOR
TOMOGRAPHY
WATER COOLED REACTORS
WATER MODERATED REACTORS
YEARS LIVI
YEARS LIVING RADIOISOT
YEARS LIVING RADIOISOTOPES