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Title: Diagnostics Plan for the National Compact Stellarator Experiment

Technical Report ·
DOI:https://doi.org/10.2172/808317· OSTI ID:808317

The National Compact Stellarator Experiment (NCSX) is a stellarator-tokamak hybrid seeking to combine the good confinement, high beta and moderate aspect ratio of the tokamak with the quasi-steady-state operation and good stability properties of the stellarator. A preliminary list of measurement requirements, intended to satisfy the needs of the phased research plan, provides the basis for a full complement of plasma diagnostics. It is important to consider this full set, even at this early stage, to assess the adequacy of the stellarator design for diagnostic port access. The 3-D nature of the plasma is a measurement challenge, as is the necessity for high spatial resolution to assess the quality of magnetic surfaces. Other diagnostic requirements include the need for re-entrant views that penetrate the cryostat, for a convenient e-beam probe for field line mapping, and for a diagnostic neutral beam for active spectroscopy.

Research Organization:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE Office of Science (US)
DOE Contract Number:
AC02-76CH03073
OSTI ID:
808317
Report Number(s):
PPPL-3724; TRN: US0301850
Resource Relation:
Other Information: PBD: 12 Jul 2002
Country of Publication:
United States
Language:
English