High field tokamaks with DD-DT operation and reduced tritium breeding requirements
DD-DT operation could provide a significant reduction in tritium breeding requirements in high field tokamak reactors without requiring very large increases in reactor size or plasma beta. Operation with the tritium breeding requirement ..gamma.. = triton provided by blanket/fusion neutrons produced = 0.7--0.9 is of particular interest. The reduced tritium breeding requirement makes possible the use of blanket designs which might be difficult to implement in a DT reactor (for example, LiAl/sub 2/O/sub 3/ blankets). The reduced blanket requirement could also be used for excess tritium production. Tradeoffs between tritium breeding and plasma performance requirements are investigated. Illustrative design features are developed for devices using both resistive magnets and superconducting magnets. Parameters for the device with superconducting magnets are B /SUB T/ = 7 T, ..beta.. = 0.063, R = 9.6 m, a = 2.4 m, ..gamma.. = 0.8, and P /SUB wall/ = 2.2 MW/m/sup 2/.
- Research Organization:
- Plasma Fusion Center, Massachusetts Inst. of Technology, Cambridge, MA 02139
- OSTI ID:
- 6186411
- Report Number(s):
- CONF-830406-
- Journal Information:
- Nucl. Technol./Fusion; (United States), Journal Name: Nucl. Technol./Fusion; (United States) Vol. 4:2; ISSN NTFUD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700200* -- Fusion Energy-- Fusion Power Plant Technology
BETA DECAY RADIOISOTOPES
BETA RATIO
BETA-MINUS DECAY RADIOISOTOPES
BREEDING BLANKETS
BREEDING RATIO
CONVERSION RATIO
D-D REACTORS
D-T REACTORS
DESIGN
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC FIELDS
MAGNETS
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
REACTOR COMPONENTS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
TRITIUM
YEARS LIVING RADIOISOTOPES