Potential off-normal events and associated radiological source terms for the compact ignition tokamak: Fusion Safety Program

Technical Report · Thu Oct 01 04:00:00 EDT 1987

OSTI ID:5542793

Holland, D F; Lyon, R E

The Compact Ignition Tokamak (CIT), the latest step in the United States program to develop the commercial application of fusion power, is designed as the first fusion device to achieve ignition conditions. It is to be constructed near Princeton, New Jersey on the site of the existing Tokamak Fusion Test Reactor (TFTR). To address the environmental impact and public safety concerns, a preliminary analysis was performed of potential off-normal radiological releases. Operational occurrences, natural phenomena, accidents with external origins, and accidents external to the PPPL site were considered as potential sources for off-normal events. Based on an initial screening, events were selected for preliminary analysis. Included in these events were tritium releases from the tritium delivery and recovery system, tritium releases from the torus, releases of activated nitrogen from the test cell or cryostat, seismic events, and shipping accidents. In each case, the design considerations related to the event were reviewed and the release scenarios discussed. Because of the complexity of some of the proposed safety systems, in some cases event trees were used to describe the accident scenarios. For each scenario, the probability was estimated as well as the release magnitude, isotope, chemical form, and release mode. 10 refs., 17 figs., 5 tabs.

• Research Organization: EG and G Idaho, Inc., Idaho Falls (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 5542793
• Report Number(s): EGG-FSP-7872; ON: DE88004112
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700206* -- Fusion Power Plant Technology-- Environmental Aspects
ACCIDENTS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CLOSED PLASMA DEVICES
COMPACT IGNITION TOKAMAK
DESIGN
ELECTRON CAPTURE RADIOISOTOPES
HYDROGEN ISOTOPES
INVENTORIES
ISOTOPES
LEAK TESTING
LIGHT NUCLEI
MATERIALS
MINUTES LIVING RADIOISOTOPES
NITROGEN 13
NITROGEN ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
RADIOACTIVE EFFLUENTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
REACTOR ACCIDENTS
REACTOR SAFETY
SAFETY
SEISMIC EVENTS
TESTING
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
TRITIUM
WASTES
YEARS LIVING RADIOISOTOPES