Status of High Flux Isotope Reactor (HFIR) post-restart safety analysis and documentation upgrades
Conference
·
OSTI ID:6674609
The High Flux Isotope Reactor (HFIR), an experimental reactor located at the Oak Ridge National Laboratory (ORNL) and operated for the US Department of Energy by Martin Marietta Energy Systems, was shut down in November, 1986 after the discovery of unexpected neutron embrittlement of the reactor vessel. The reactor was restarted in April, 1989, following an extensive review by DOE and ORNL of the HFIR design, safety, operation, maintenance and management, and the implementation of several upgrades to HFIR safety-related hardware, analyses, documents and procedures. This included establishing new operating conditions to provide added margin against pressure vessel failure, as well as the addition, or upgrading, of specific safety-related hardware. This paper summarizes the status of some of the follow-on (post-restart) activities which are currently in progress, and which will result in a comprehensive set of safety analyses and documentation for the HFIR, comparable with current practice in commercial nuclear power plants. 8 refs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6674609
- Report Number(s):
- CONF-900917-15; ON: DE90015605
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
220600 -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
220900* -- Nuclear Reactor Technology-- Reactor Safety
ADMINISTRATIVE PROCEDURES
COMPUTER CODES
CONTAINERS
DOCUMENTATION
DOSES
EMBRITTLEMENT
ENRICHED URANIUM REACTORS
HFIR REACTOR
IRRADIATION REACTORS
ISOTOPE PRODUCTION REACTORS
MODIFICATIONS
OPERATION
R CODES
RADIATION DOSES
REACTOR OPERATION
REACTOR SAFETY
REACTOR START-UP
REACTOR VESSELS
REACTORS
REGULATIONS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SAFETY
START-UP
TANK TYPE REACTORS
TEST REACTORS
THERMAL REACTORS
TRANSIENTS
WATER COOLED REACTORS
WATER MODERATED REACTORS
22 GENERAL STUDIES OF NUCLEAR REACTORS
220600 -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
220900* -- Nuclear Reactor Technology-- Reactor Safety
ADMINISTRATIVE PROCEDURES
COMPUTER CODES
CONTAINERS
DOCUMENTATION
DOSES
EMBRITTLEMENT
ENRICHED URANIUM REACTORS
HFIR REACTOR
IRRADIATION REACTORS
ISOTOPE PRODUCTION REACTORS
MODIFICATIONS
OPERATION
R CODES
RADIATION DOSES
REACTOR OPERATION
REACTOR SAFETY
REACTOR START-UP
REACTOR VESSELS
REACTORS
REGULATIONS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SAFETY
START-UP
TANK TYPE REACTORS
TEST REACTORS
THERMAL REACTORS
TRANSIENTS
WATER COOLED REACTORS
WATER MODERATED REACTORS