Status of Far Infrared Tangential Interferometry/Polarimetry (FIReTIP) on NSTX

Technical Report · Fri Aug 11 00:00:00 EDT 2000

DOI:https://doi.org/10.2172/761105· OSTI ID:761105

Park, H K; Edwards, S; Guttadora, L; Deng, B; Domier, C W; Lee, K C; Johnson, M; Luhmann, Jr, N C

The Influence of paramagnetism and diamagnetism will significantly alter the vacuum toroidal magnetic field in the spherical torus. Therefore, plasma parameters dependent upon BT such as the q-profile and the local b value need an independent measurement of BT(r,t). The multi-chord Tangential Far Infrared Interferometer/Polarimeter (FIReTIP) system [1] currently under development for the National Spherical Torus Experiment (NSTX) will provide temporally and radially resolved toroidal field profile [BT(r,t)] and 2-D electron density profile [ne(r,t)] data. A two-channel interferometer will be operational this year and the full system will be ready by 2002.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 761105
• Report Number(s): PPPL-3485; TRN: US0004384
• Resource Relation: Other Information: PBD: 11 Aug 2000
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
NSTX DEVICE
DIAMAGNETISM
INTERFEROMETERS
MAGNETIC FIELDS
PARAMAGNETISM
DESIGN