Development of fuel failure detection system for a high temperature gas cooled reactor

Conference · Sun Feb 01 04:00:00 EST 1987 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6744334

Terada, H; Wakayama, N; Obata, M; Tobita, T; Tsuyuzaki, N; Gotoh, I; Oyama, N; Sakuraba, K; Yokouchi, I; Yoshida, H

A high-sensitive fuel failure detection (FFD) method for a high-temperature gas-cooled reactor has been studied. A FFD system was developed and tested using an irradiation rig of the JMTR. A special irradiation capsule which contains both intact fuels and failed fuels of coated fuel particles was loaded in the irradiation rig. The primary helium gas with fission products was led to the FFD system. The response of the FFD system and the behaviours of gaseous fission products released were compared the failed fuels to the intact fuels in the various operation conditions. Counting rates of the FFD system due to the fission products released from the both fuel samples showed different behaviours at the fuel temperature over 1200 C. Gamma-ray spectra of the primary helium gas were also monitored for identification of the nuclides.

• Research Organization: Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11
• OSTI ID: 6744334
• Report Number(s): CONF-861007-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-34:1
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210300 -- Power Reactors
Nonbreeding
Graphite Moderated
22 GENERAL STUDIES OF NUCLEAR REACTORS
220400* -- Nuclear Reactor Technology-- Control Systems
COUNTING RATES
DETECTION
ELEMENTS
ENRICHED URANIUM REACTORS
FAILED ELEMENT DETECTION
FAILED ELEMENT MONITORS
FISSION PRODUCT RELEASE
FISSION PRODUCTS
FLUIDS
FUEL ELEMENTS
GAMMA SPECTRA
GAS COOLED REACTORS
GASES
GRAPHITE MODERATED REACTORS
HELIUM
HTGR TYPE REACTORS
IRRADIATION
IRRADIATION REACTORS
ISOTOPES
JMTR REACTOR
LOADING
MATERIALS
MATERIALS HANDLING
MATERIALS TESTING REACTORS
MEASURING INSTRUMENTS
MONITORS
NONMETALS
OPERATION
PERFORMANCE TESTING
RADIOACTIVE MATERIALS
RARE GASES
REACTOR COMPONENTS
REACTOR OPERATION
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SPECTRA
TANK TYPE REACTORS
TEMPERATURE EFFECTS
TEST FACILITIES
TEST REACTORS
TESTING
VERY HIGH TEMPERATURE
WATER COOLED REACTORS
WATER MODERATED REACTORS