Error field considerations for BPX
Conference
·
OSTI ID:5934341
Irregularities in the position of poloidal and/or toroidal field coils in tokamaks produce resonant toroidal asymmetries in the vacuum magnetic fields. Otherwise stable tokamak discharges become non-linearly unstable to disruptive locked modes when subjected to low level error fields. Because of the field errors, magnetic islands are produced which would not otherwise occur in tearing mode stable configurations; a concomitant reduction of the total confinement can result. Poloidal and toroidal asymmetries arise in the heat flux to the divertor target. The field errors from perturbed BPX coils are used in a field line tracing code of the BPX equilibrium to study these deleterious effects. Limits on coil irregularities for device design and fabrication are computed along with possible correcting coils for reducing such field errors.
- Research Organization:
- General Atomics, San Diego, CA (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-89ER51114
- OSTI ID:
- 5934341
- Report Number(s):
- GA-A-20579; CONF-910968--64; ON: DE92005394
- Country of Publication:
- United States
- Language:
- English
Similar Records
Error field considerations for BPX [Book Chapter]
Limits on m = 2, n = 1 error field induced locked mode instability in TPX with typical sources of poloidal field coil error field and a prototype correction coil, ``C-coil``
Limits on m = 2, n = 1 error field induced locked mode instability in TPX with typical sources of poloidal field coil error field and a prototype correction coil, C-coil''
Conference
·
Sun Sep 29 20:00:00 EDT 1991
· [Proceedings] The 14th IEEE/NPSS Symposium Fusion Engineering
·
OSTI ID:10115357
Limits on m = 2, n = 1 error field induced locked mode instability in TPX with typical sources of poloidal field coil error field and a prototype correction coil, ``C-coil``
Technical Report
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Mon Nov 30 23:00:00 EST 1992
·
OSTI ID:10158869
Limits on m = 2, n = 1 error field induced locked mode instability in TPX with typical sources of poloidal field coil error field and a prototype correction coil, C-coil''
Technical Report
·
Mon Nov 30 23:00:00 EST 1992
·
OSTI ID:6274164
Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700430* -- Fusion Technology-- Magnet Coils & Fields-- (1992-)
CLOSED PLASMA DEVICES
COMPACT IGNITION TOKAMAK
CONFINEMENT TIME
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
ERRORS
MAGNET COILS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MAGNETIC ISLANDS
STABILITY
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
700430* -- Fusion Technology-- Magnet Coils & Fields-- (1992-)
CLOSED PLASMA DEVICES
COMPACT IGNITION TOKAMAK
CONFINEMENT TIME
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
ERRORS
MAGNET COILS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MAGNETIC ISLANDS
STABILITY
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS